Review: D-Link DSL-2640B

I’ve had DSL for right around 10 years. I would have ordered it sooner, except it wasn’t available in my area any earlier than that.

Over the years I’ve owned several modems. I started out with an Alcatel, then after I moved a mile down the street I owned a couple of different Speedstream modems. Each would drop connections every so often, and each had a different (and undocumented, of course) ritual to get it back online.

The highest praise I can give to the D-Link DSL-2640B is that I haven’t discovered such a ritual yet. If the phone line and electricity are working, it finds a way to stay online.

There’s nothing especially flashy about the 2640B. It’s an unassuming black and silver box, similar in styling to modern PCs, with jacks in the back. It’s a combination modem, gateway, and switch in one package, so in my case, it replaced two boxes–my Speedstream modem, and my Linksys WRT54G. Many ISPs have been distributing all-in-one units made by companies like 2wire in recent years; the D-Link is similar to those, but a bit smaller than many of them.

Setup is trivial for someone who’s set up devices like my old Linksys. Those who’ve never done such a thing may need assistance. I can’t vouch for the quality of D-Link’s customer service because I didn’t need it. Before I plugged the unit into my phone line, I plugged a laptop into the D-Link, brought the two units over to my desktop PC where I brought up my Linksys configuration, and I checked all my settings against the Linksys. About 10 minutes later, I plugged the D-Link into my phone line, it connected to my ISP, and it’s been online ever since.

The nicest feature is its ADSL information screen. It tells me the modem speed (downstream and upstream), number of errors, and other diagnostic information. I’ve seen my speed range from 1.5 megabit to as low as 256K (upstream stays steady at 384K), but it’s never dropped. I’ll take speed fluctuations over dropped connections any day. If the quality of my phone line deteriorates any further (or maybe I should say, “when”)–I’ll be armed with some good information. Southwestern Bell/SBC/AT&T have always been able to dismiss my complaints in the past. I imagine that’ll be harder to do when I can tell them exactly how many tens of millions of downstream errors I have, versus 96 upstream errors.

Despite those connections, the modem keeps on trucking. I’m impressed.

My sole complaint is that the DynDNS client doesn’t pass my domain name to my internal network. I had to put an entry for my DynDNS name into my hosts file. This won’t be an issue for anyone who isn’t running their own web server, but it’s a little aggravating for those who do. Less aggravating than a dropped connection though.

So if you need a new DSL modem for whatever reason, I recommend the D-Link DSL-2640B. It isn’t flashy, but it works and keeps working.

Update 10 October 2010: I’ve been using this unit for about 15 months, and it’s still going strong. So I can recommend it even more strongly than when I wrote this. It’s out of warranty now, and I didn’t even notice.

Setting the MTU automatically in Debian

I run this website off a server running on an ADSL line in a spare bedroom of my home. That causes some weird issues from time to time, like the time I had to figure out setting the MTU automatically in Debian.

Why Debian?

My server of choice is Debian, because it’s Linux which makes it fast, reliable, and cheap, and Debian makes it pretty easy to install only what you want and need, so I can have a server OS that’s only using 125 megabytes of disk space, leaving most of my drive available for content. I like having space for content.

This will work in Debian-derived systems like Ubuntu and Linux Mint too.

PPPoE issues

Now, the downside of modern DSL: Southwestern Bell, like most ISPs these days, uses PPPoE. So not only can your IP address change with no notice whatsoever, you also have the hassles of PPPoE. With the default settings, some unknown but noticeably large percentage of web users won’t be able to access a web server running on a DSL connection using PPPoE.

The reason is MTU and fragmentation.Yes, you remember MTU if you used Windows 9x back in the bad old days of dialup. Tweakers would play around with the MTU settings in hopes of squeezing just a little more performance out of their 56K modems, and they would swear that one utility did a better job than any others, or that this MTU setting was optimal and the conventional wisdom of 576 stank… Remember those flamewars?

Well, with broadband, theoretically the right setting to use is 1500. Trouble is, PPPoE steals some of that packet space, and the result is something worse than slow speeds. In some scenarios, you completely vanish.

Setting the MTU

The way to make my website reappear is to issue the command ifconfig eth0 mtu 1472. The exact number doesn’t seem to matter much. It appears for me that 1472 is the maximum I can use. (It can vary from ISP to ISP, in case you’re wondering.)

Excellent. Problem solved.

Not so fast. Problem solved until my server reboots. Linux doesn’t need to reboot, right? Right you are. But here in St. Louis, the power likes to hiccup a lot, especially in the summertime. My server is on a UPS, but every once in a while, in the middle of the night, there must be a long enough power failure that my UPS dies, because every once in a while I fall off the ‘net again.

To set the default MTU permanently–that is, to change it automatically on bootup–one normally would change the ifup script or the rc.startup script. Except Debian doesn’t have either of those.

My kludgy solution: cron. Log in as root, issue the command crontab -e, and add the following line:

*/2 * * * * ifconfig eth0 mtu 1472

With this in place, only seconds will elapse between the time my power comes back on for good and I reappear on the ‘net. I can live with that.

More Debian tricks

If you change your network card or motherboard, you don’t have to reinstall Debian but you may lose eth0. Here’s how to get eth0 back. And here’s how to get a list of the installed packages in Debian.

12/24/2000

~Mail follows today’s post~

Last night, I sent myself hurtling 120 miles at 75 MPH to Columbia, Mo. My mom lives there, and my alma mater, the University of Missouri, is also there. Today, after morning services, I’m headed another 120 miles to Kansas City, where most of my mom’s family lives. I don’t get back there very often, so I’m looking forward to it.

I’ve got some stuff to write, but I’ll be late for services if I do, so it’ll have to wait.
~~~~~~~~~~
From: “Lawrence Kim” <lykim@nospam.telusplanet.net>
Subject: A loyal reader w/a technical question

Dear Dave: I have a few questions, well, maybe just one, related to your book.  When you do a clean install of W98SE on a partitioned drive, if you wipe C: (where W98 is), how do you get the other programs on the other drives to run again?  Especially if you’ve wiped all the .dll files and other important stuff?  Secondly, what’s a good and fast way not to have to reload all the programs again if you wipe & reinstall W98?  If I used Drive Image 4.0 or a tool like that (or maybe even Norton Ghost), how do you copy images of your drive back onto your computer?  Lastly, what’s the best way to optimize your ADSL/highspeed Internet connection?  I’ve been using this program called NetSuperSonic which is supposed to adjust certain registry settings in Windows to optimize it for broadband use.  It seems to work pretty good, but I was wondering if you would have some other suggestions.  That’s pretty much everything.  Oh yeah, are you going to come out with a new, updated book?  I don’t know, just thought that I would ask. That’s for writing the book; it’s been extremely helpful.

Cheers.

~~~~~

I think that’s actually more than one question, but that’s ok of course.

The idea of a clean install is to start over, which of course means reinstalling everything. Reinstalling everything takes time, of course, but the benefit is that you’re rid of all those old, no-longer-in-use DLLs and other leftovers that hang around after you uninstall programs. You’ve also got fresh copies of everything and a brand-new registry, which is good because registries get corrupt and so can DLLs and even programs. The result is a faster, more stable system.

But if you’ve lost the installation files for some of your programs, you’ve got a problem. You can use CleanSweep or Uninstaller to package up the program, DLLs, and its registry entries for re-installation, but be sure to test the package on another PC before you wipe, because these don’t always work.

Ghost or Drive Image aren’t a clean install per se, because they preserve everything. Generally the way I save and restore images is to a network drive, or in the case of a standalone PC, to an extra partition or, better yet, a second hard drive. You can also span an image to multiple Zip, Jaz, or Orb disks but that’s slower and more cumbersome. These programs are absolutely invaluable for disaster recovery, but as optimization tools in their own right, their benefit is very limited.

If NetSupersonic checks your MTU and adjusts it properly (many of those utilities don’t), that’s a great start. You can measure your speed by going to http://www.pcpitstop.com/internetcenter.asp, and they have some suggestions on the site for fixing sub-optimal perfomance. Ad-blocking software will speed you up as much as anything else you can do, and FastNet99 (mentioned in the book) is also useful by reducing the number of DNS lookups you have to do (I accomplished the same thing by connecting my DSL modem to a Linux box running its own DNS, which I then used to share my DSL out to my Windows PCs).

As for an updated book, I imagine not doing one would probably kill me. But publishers are understandably hesitant to do one right now, since no one seems to know what Microsoft will do next. Is Windows Me really the end? Is Windows 2000’s successor really going to be suitable for home use? When will Microsoft manage to deliver another OS? No publisher wants to invest tens of thousands of dollars in producing a book only to find out they guessed wrong. Once there are answers to those questions, it’ll be time to write a new book. In the meantime, I’m writing magazine articles (there’s very little new in the article at www.computershopper.co.uk this month; there are a couple of new tricks in the article for February, and the article for March is almost entirely new stuff) and posting new tricks to my own site as I find them or think of them. So the answer to your question is, “probably,” but I can’t give you any kind of time frame.

Hopefully that answers your questions. If not, feel free to write back.

~~~~~~~~~~

From: “Lawrence Kim” <lykim@nospam.telusplanet.net>
Subject: Drive Image Pt. 2
However, IF I were to reinstall everything, erase my game drive, utility drive, and C: drive, reinstall W98SE, all my programs, and THEN take an image of my C drive after my brand new clean install, theoretically I shouldn’t have to ever reinstall everything again (unless I add new programs or whatnot) because the image I have taken of my C drive will be a nice, squeaky clean one, right?

How do you spell “segway?” as in, linking two opposite ideas together?

Finally, do you think it’s worth picking up Norton Systemworks 2001 when I have 2000?

Thanx again.
~~~~~

You are correct about imaging a fresh install. That’s the way we handle systems at work (my job would be impossible otherwise, as many systems and as few techs as we have). It’s nice to be able to restore to pristine condition in 15 minutes instead of 6 hours.

The word segue is pronounced “Segway.” I think that’s the word you’re looking for.

The biggest new feature of Systemworks 2001 is Windows 2000 and Windows Me compatibility. If neither of those matter to you, stick with what you have.

~~~~~~~~~~

From: “John Doucette” <jdoucett@nospam.gienow.com>
Subject: windows memory use

Hi Dave

We have several high end Pentiums at work running Windows 98. These PC’s have 512 MB of Ram and run what I am told is a very resource intensive C+ program. Now I have not myself touched these machines yet and likely won’t as what is not apparently broken they will not likely let me fix (some might say break).

Now no work was done to the best of my knowledge to try and tune these PC’s. They merely installed Ram and ran the program till performance seemed to hit the ceiling.

Now I have always thought that Windows 9x would not perform any better with more than 128 MB of Ram. I think that if given the opportunity I could down grade these PC’s to 128 MB of Ram, tune them and get the same performance.
I would then have Ram to use were it could be of value.

I am curious with all your Windows tuning experience and some programming knowledge if I am pissing in the wind, or if you think that the PC’s would likely run the C+ program well with less Ram.

John

~~~~~

If the program really needs that kind of memory, they have no business running it on 98. They should be running on NT. Win98 definitely gives diminishing returns after 128MB; you see some improvement but not much. I don’t remember what the maximum memory for 9x is; it may be 512 or it may be 768, but you’ll get to a point where if you don’t specify a limit in the vcache section of system.ini, Windows won’t boot because the disk cache can’t handle that much memory and will crash. That may be the ceiling they hit.

I seriously doubt that program runs demonstrably better in 512MB than it would in 128 with some optimization. I’d set some parameters on the disk cache, optimize the hard disk(s), cut everything possible out of startup, kill anything cutesie the PCs are running, and add the line ConservativeSwapFileUsage=1 to the [386Enh] section of system.ini. I’d also use 98lite’s IEradicator to pull IE if they don’t need a Web browser–that increases system performance across the board by a good 15-30 percent. If the program’s really a resource hog, I could justify 256, but really I’ve yet to see a Win9x PC that truly benefitted from having more than 96 MB of RAM. It just makes more sense to by a 128MB stick than a 64 and a 32.

I’d say take one of the PCs, make a Ghost image of it so you can bring it back to the original, then pull 384 megs and optimize the sucker. I’m betting it’d make a huge difference. (And I’d love to hear the results.)

~~~~~~~~~~

From: Edwards, Bruce
Subject: Internet Connection Sharing

Good morning Dave:

I posted this over on the hardwareguys.com forum about internet conneciton sharing, where you kindly gave me a suggestion that helped a lot.  🙂

———————–

Hi Dave and other interested persons/Linux gurus:

Your suggestion about the gateway was part of what I needed, thank you.  In addition to not having the gateway defined on my internal Windows 98 client, I also needed to put the DNS server IP addresses on the clients in the TCP/IP configuration.  I was assuming it would get the DNS info from the Sharethe net gateway, where the DNS server is also defined.  Silly me!  There looks like there is both good news and bad news.  First the good news:

Once I was able to get it working, on the same hardware as the Wingate solution, my aDSL performance doubled!  

From the DSLReport.com scan I received this:
TCP port 53 is OPEN

GRC.com reported all ports (scanned for) were closed.

With port 53 open, I will be running the Wingate solution until I get some feedback or more info about what to do.  There is probably some bad vulnerability somewhere.  I still have not looked through the SharetheNet information I have enough to know if I can turn that port off easily (easily for a Linux newbie that is).  I seem to remember that there probably is an init file with all the services defined which would probably be easy to turn this port off.  Since this whole thing runs from a floppy, the files are actually active on a ram disk.

Here is some SharetheNet Linux configuration information specific to my current gatewayPC, in case any of you Linux gurus out there would be willing to point out what I need to do:

http://bruceedwards.com/journal/001218a.htm#connect

I’ve probably put enough info there to make hackers very happy.  Oh well, I won’t be running SharetheNet in that configuration and will not run it at all unless I can determine that it is safe.  Any comments appreciated.

Thank you,

Bruce  🙂

~~~~~

Port 53 is DNS. I wouldn’t be too worried about it. The critical ports are blocked, and even if someone does somehow manage to get into your system, since the configuration is on a write-protected floppy all you have to do is reboot. And they won’t be able to do much on your internal network since you’re running Windows, and your Linux box doesn’t have Samba installed.
 
That information you posted is mostly hardware configuration data; I don’t think there’s anything useful there unless some exploit happens to be discovered for a particular driver (possible but not worth worrying about).
 
I thought I knew once how to block specific ports, but that’ll have to wait until tonight for me to dig.

~~~~~~~~~~

From: “J H RICKETSON” <culam@nospam.sonic.net>
Subject: FDISK?

Dave –

Where did you get an FDISK that asks you if you want to do big partitions?  Mine (DOS 6.22) thinks an 8+ gig disk is plenty big enough for anyone and refuses to even consider anything larger – and a ~2 gig partition is all anyone will ever need. I need a more user-tolerant FDISK!

Regards,

JHR
~~~~~

Windows 95B, Windows 98, and Windows Me’s FDISKs all handle larger than 8 GB drives. Partition size is a function of filesystem. FAT16 is limited to 2 gigs, period. FAT32 can be several terabytes.

~~~~~~~~~~

From: “Lawrence Kim” <lykim@nospam.telusplanet.net>
Subject: Recycle Bins and Boxers

Is there any way that one can make one recycle bin in only one partitioned drive, and have all the junk from all the other drives go to that one recycle bin instead of having recycle bins for each and every drive?  And what do you think about one of your ministers of the House of Common wanting to pass a law that would indict a boxer if he inflicts serious injury on another boxer, or kills him?  I personally think that should be out of the hands of lawmakers, as both boxers realize the risk that they are taking when stepping into the ring.  The only exception that I can think of is if a boxer continues to pummel away at his opponent after the bell has rung, and he’s straddling his opponent’s waist, hammering away at his face.  Okay, that can be prosecuted, but not if everything else is completely fair.  Anyway, enough of that.  Thanx again.

~~~~~

I wish it were possible to consolidate the recycle bins, but I don’t believe it is. I’ve never seen any trick to do that. The Mac does that, so I guess I could say get a Mac, but that feature isn’t worth the trouble and expense of switching platforms.

I’m not British, so I haven’t heard of that proposed law, but that’s ridiculous. When you’re playing sports, you’re at constant risk of injury. It’s a risk you take. And with what professional athletes make (at least in the States), that’s fair. Most professional athletes in the States should be set for life after just a five-year career, if they handle their money wisely (most don’t).

Baseball’s considered one of the safer sports, but there’s been one instance of a player killed when he was hit by a pitch (Carl Mays, sometime in the 1920s, I think). There’ve been countless career-ending injuries due to being hit by a pitch or a line drive. It’s up to the officials of the sport to ensure that players are sportsmanlike and don’t take cheap shots, not the government.

Then again, the United States has a much more laissez-faire government than most countries, and I’ve always tended to flutter between the libertarian and conservative points of view so I’m even more laissez-faire than the average U.S. lawmaker.

12/17/2000

Radio Free Linux? I found these instructions for broadcasting audio with Linux very interesting, though of questionable legality. When you broadcast music, you’re supposed to pay the artist, or the artist’s representative, a cut. That’s how Michael Jackson and Paul McCartney made their money–they bought up rights to songs besides their own. Their record royalties are a pittance in comparison.

I’m guessing we’ll be seeing plenty of Linux-based pirate Radio stations, since the required software’s all free and the system requirements minimal.

Search engine hits. I’ll take these recent search engine queries as questions. Editthispage keeps track of the links people follow to get here. I’m sure some of the privacy people out there are throwing a fit about this, but that’s pretty standard behavior for Webservers. The better you know your audience, the better you can serve them, as I’m going to attempt to demonstrate. (Might as well reward these people if they come back, eh?)

As usual, the difference between good and evil or right and wrong comes down to the answer to one question: What’s your motive?

The built-in memory test. I assume this person was looking for information on the standard POST (Power-On Self Test) built into every PC. What about it? It’s worthless. If the memory module is in really bad shape, it might fail that test. But many of these tests simply count the memory, since fast memory tests give the impression of being a faster board. For a good memory tester, see RAM Stress Test (expensive, unfortunately). For troubleshooting, maybe a local computer store has a memory tester. For preventative maintenance, it’s less expensive to buy quality name-brand memory.

Windows Me DNS cache. Ah, someone’s thinking. A DNS cache is an outstanding way to speed up or optimize Internet access. The only true DNS cache that I know of that runs under Windows is Naviscope , which also does ad blocking but doesn’t do as good of a job as AdSubtract or Proxomitron. Since Naviscope can use a proxy server itself, you could point it at Proxomitron, assuming you have buckets of memory for running Internet utilities.

If you happen to be running a Linux box to route packets to a broadband connection, you can take this advice.

Underground ADSL. No idea what the user meant but I know exactly why it hit. I’ve talked about ADSL, and the site’s name will produce a search hit. Since DSL uses existing underground cable, sites talking about DSL installation will get hits, as will a lot of sites of questionable character (hacking and phreaking sites).

Scanner troubleshooting secrets

~Mail Follows Today’s Post~

Scanner wisdom. One of the things I did last week was set up a Umax scanner on a new iMac DV. The scanner worked perfectly on a Windows 98 PC, but when I connected it to the Mac it developed all sorts of strange diseases–not warming up properly, only scanning 1/3 of the page before timing out, making really loud noises, crashing the system…

I couldn’t resolve it, so I contacted Umax technical support. The tech I spoke with reminded me of a number of scanner tips I’d heard before but had forgotten, and besides that, I rarely if ever see them in the scanner manuals.

  • Plug scanners directly into the wall, not into a power strip. I’ve never heard a good explanation of why scanners are more sensitive to this than any other peripheral, but I’ve seen it work.
  • Plug USB scanners into a powered hub, or better yet, directly into the computer. USB scanners shouldn’t need power from the USB port, since they have their own power source, but this seems to make a difference.
  • Download the newest drivers, especially if you have a young operating system like MacOS 9, Mac OS X, Windows ME, or Windows 2000. It can take a little while for the scanner drivers to completely stabilize. Don’t install off the CD that came with the scanner, because it might be out of date. Get the newest stuff from the manufacturer’s Web site.
  • Uninstall old drivers before installing the new ones. This was the problem that bit me. The new driver didn’t totally overwrite the old one, creating a conflict that made the scanner go goofy.
  • Buy your scanner from a company that has a track record of providing updated drivers. Yes, that probably means you shouldn’t buy the $15 scanner with the $25 mail-in rebate. Yes, that means don’t buy HP. Up until a couple of years ago, getting NT drivers out of HP was like pulling teeth; now HP is charging for Windows 2000 drivers. HP also likes to abandon and then pick back up Mac support on a whim. Terrible track record.

Umax’s track record is pretty darn good. I’ve downloaded NT drivers for some really ancient Umax scanners after replacing old Macs with NT boxes. I once ran into a weird incompatibility with a seven-year-old Umax scanner–it was a B&W G3 with a wide SCSI controller (why, I don’t know) running Mac OS 8.6. Now that I think about it, I think the incompatibility was with the controller card. The scanner was discontinued years ago (before Mac OS 8 came out), so expecting them to provide a fix was way out of line.
m I’ve ever had with a Umax that they didn’t resolve, so when I spec out a scanner at work, Umax is always on my short list.

And here’s something I just found interesting. Maybe I’m the only one. But in reading the mail on Jerry Pournelle’s site, I found this. John Klos, administrator of sixgirls.org, takes Jerry to task for saying a Celeron can’t be a server. He cites his 66 MHz 68060-based Amiga 4000, which apparently acts as a mail and Web server, as proof. Though the most powerful m68k-based machine ever made, its processing power pales next to any Celeron (spare the original cacheless Celeron 266 and 300).

I think the point he was trying to make was that Unix plays by different rules. Indeed, when your server OS isn’t joined at the hip to a GUI and a Web browser and whatever else Gates tosses in on a whim, you can do a lot more work with less. His Amiga would make a lousy terminal server, but for serving up static Web pages and e-mail, there’s absolutely nothing wrong with it. Hosting a bunch of Web sites on an Amiga 4000 just because I could sounds very much like something I’d try myself if I had the hardware available or was willing to pay for the hardware necessary.

But I see Jerry Pournelle’s point as well.

It’s probably not the soundest business practice to advertise that you’re running off a several-year-old sub-100 MHz server, because that makes people nervous. Microsoft’s done a pretty admirable job of pounding everything slower than 350 MHz into obsolescence and the public knows this. And Intel and AMD have done a good job of marketing their high-end CPUs, resulting in people tending to lay blame at the CPU’s feet if it’s anything but a recent Pentium III. And, well, if you’re running off a shiny new IBM Netfinity, it’s very easy to get it fixed, or if need be, to replace it with another identical one. I know where to get true-blue Amiga parts and I even know which ones are interchangeable with PCs, but you might well be surprised to hear you can still get parts and that some are interchangeable.

But I’m sure there are far, far more sub-100 MHz machines out there in mission-critical situations functioning just fine than anyone wants to admit. I know we had many at my previous employer, and we have several at my current job, and it doesn’t make me nervous. The biggest difference is that most of them have nameplates like Sun and DEC and Compaq and IBM on them, rather than Commodore. But then again, Commodore’s reputation aside, it’s been years since I’ve seen a computer as well built as my Amiga 2000. (The last was the IBM PS/2 Model 80, which cost five times as much.) If I could get Amiga network cards for a decent price, you’d better believe I’d be running that computer as a firewall/proxy and other duties as assigned. I could probably get five years’ uninterrupted service from old Amy. Then I’d just replace her memory and get another ten.

The thing that makes me most nervous about John Klos’ situation is the business model’s dependence on him. I have faith in his A4000. I have faith in his ability to fix it if things do go wrong (anyone running NetBSD on an Amiga knows his machine better than the onsite techs who fix NetFinity servers know theirs). But there’s such thing as too much importance. I don’t let Apple certified techs come onsite to fix our Macs anymore at work, because I got tired of them breaking other things while they did warranty work and having to fix three things after they left. I know their machines better than they do. That makes me irreplaceable. A little job security is good. Too much job sercurity is bad, very bad. I’ll be doing the same thing next year and the year after that. It’s good to be able to say, “Call somebody else.” But that’s his problem, not his company’s or his customers’.

~~~~~~~~~~

From: rock4uandme
To: dfarq@swbell.net
Sent: Wednesday, October 25, 2000 1:22 PM
Subject: i`m having trouble with my canon bjc-210printer…

i`m having trouble with my canon bjc210 printer it`s printing every thing all red..Can you help???
 
 
thank you!!    john c
 
~~~~~~~~~

Printers aren’t my specialty and I don’t think I’ve ever seen a Canon BJC210, but if your printer has replacable printheads (some printers make the printhead part of the ink cartridge while others make them a separate component), try replacing them. That was the problem with the only Canon printer I’ve ever fixed.
 
You might try another color ink cartridge too; sometimes those go bad even if they still have ink in them.
 
If that fails, Canon does have a tech support page for that printer. I gave it a quick look and it’s a bit sketchy, but maybe it’ll help. If nothing else, there’s an e-mail address for questions. The page is at http://209.85.7.18/techsupport.php3?p=bjc210 (to save you from navigating the entire www.ccsi.canon.com page).
 

I hope that helps.

Dave
 
~~~~~~~~~~
 

From: Bruce Edwards
Subject: Crazy Win98 Networking Computer Problem

Dear Dave:

I am having a crazy computer problem which I am hoping you or your readers
may be able to give me a clue to.  I do have this posted on my daily
journal, but since I get very little traffic, I thought your readership or
yourself may be able to help.  Here’s the problem:

My wife’s computer suddenly and inexplicably became very slow when accessing
web sites and usually when accessing her e-mail.  We access the internet
normally through the LAN I installed at home.  This goes to a Wingate
machine which is connected to the aDSL line allowing shared access to the
internet.

My computer still sends and receives e-mail and accesses the web at full
speed.  Alice’s computer now appears to access the web text at about the
speed of a 9600 baud modem with graphics coming down even more slowly if at
all.  Also, her e-mail (Outlook Express) usually times out when going
through the LAN to the Wingate machine and then out over the internet. 
The LAN is working since she is making a connection out that way.

File transfer via the LAN between my PC and hers goes at full speed.
Something is causing her internet access to slow to a crawl while mine is
unaffected.  Also, it appears to be only part of her internet access.  I can
telnet out from her computer and connect to external servers very fast, as
fast as always.  I know telnet is just simple text, but the connection to
the server is very rapid too while connecting to a server via an http
browser is much much slower and then, once connected, the data flows so slow
it’s crazy.

Also, dial-up and connect to the internet via AOL and then use her mail
client and (external to AOL) browser works fine and is as speedy as you
would expect for a 56K modem.  What gives?

I tried reinstalling windows over the existing set-up (did not do anything)
and finally started over from “bare metal” as some like to say.  Reformat
the C drive.  Reinstall Windows 98, reinstall all the drivers, apps, tweak
the configuration, get it all working correctly.  Guess what?  Same slow
speed via the aDSL LAN connection even though my computer zips out via the
same connection.  Any suggestions?

Sincerely,

Bruce W. Edwards
e-mail:  bruce@BruceEdwards.com
Check www.BruceEdwards.com/journal  for my daily journal.

Bruce  🙂
Bruce W. Edwards
Sr. I.S. Auditor  
~~~~~~~~~~

From: Dave Farquhar [mailto:dfarq@swbell.net]Sent: Monday, October 23, 2000 6:16 PM
To: Edwards, Bruce
Cc: Diana Farquhar
Subject: Re: Crazy Win98 Networking Computer Problem

Hi Bruce,
 
The best thing I can think of is your MTU setting–have you run any of those MTU optimization programs? Those can have precisely the effect you describe at times. Try setting yor MTU back to 1500 and see what that does. While I wholeheartedly recommend them for dialup connections, MTU tweaking and any sort of LAN definitely don’t mix–to the point that I almost regret even mentioning the things in Optimizing Windows.
 
Short of that, I’d suggest ripping out all of your networking protocols and adapters from the Network control panel and add back in TCP/IP and only the other things you absolutely need. This’ll keep Windows from getting confused and trying to use the wrong transport, and eliminate the corrupted TCP/IP possibility. These are remote, but possible. Though your reinstall should have eliminated that possibility…
 
If it’s neither of those things, I’d start to suspect hardware. Make sure you don’t have an interrupt conflict (rare these days, but I just saw one a couple weeks ago so I don’t rule them out). Also try swapping in a different cable or NIC in your wife’s machine. Cables of course go bad more frequently than NICs, though I’ve had horrible luck with cheap NICs. At this point I won’t buy any ethernet NIC other than a Bay Netgear, 3Com or Intel.
 
I hope that helps. Let me know how it goes for you.

Dave 
~~~~~~~~~~
From: Bruce Edwards

Hi Dave:
 
Thank you for posting on your web site. I thought you would like an update.
 
I verified the MTU setting was still at 1500 (it was).  I have not used one of the optimizing programs on this PC.
 
I removed all the adapters from the PC via the control panel.  Rebooted and only added back TCP/IP on the Ethernet card. 
 
I double checked the interrupts in the control panel, there do not appear to be any conflicts and all devices report proper function.
 
I still need to 100% verify the wiring/hubs.  I think they are O.K. since that PC, using the same adapter, is able to file share with other PCs on the network.  That also implies that the adapter is O.K.
 
I will plug my PC into the same hub and port as my wife’s using the same cable to verify that the network infrastructure is O.K.
 
Then, I’ll removed the adapter and try a different one.
 
Hopefully one of these things will work.
 
Cheers,
 
Bruce
~~~~~~~~~~

This is a longshot, but… I’m wondering if maybe your DNS settings are off, or if your browser might be set to use a proxy server that doesn’t exist. That’s the only other thing I can think of that can cause sporadic slow access, unless the problem is your Web browser itself. Whichever browser you’re using, have you by any chance tried installing and testing the other one to see if it has the same problems?
 
In my experience, IE 5.5 isn’t exactly the greatest of performers, or when it does perform well, it seems to be by monopolizing CPU time. I’ve gotten much better results with IE 5.0. As for Netscape, I do wish they’d get it right again someday…
 
Thanks for the update. Hopefully we can find an answer.

Dave 
~~~~~~~~~~ 

Abandoned intellectual property

Abandoned Intellectual Property. I read a piece on this subject at OSOpinion over the weekend, and I’ve been thinking about it ever since. There are, of course, a lot of people calling for abolition of copyright or radical changes. This is, believe it or not, one of the tamer proposals I’ve read.

I’m definitely of two minds on this one. Take my first ever publication for money, in 1991. Compute Magazine, before Bob Guccione had managed to totally ram it into the ground, opted to buy my spring break project I collaborated on with a friend. We were writing a video game for the Commodore 64 and 128 and we were getting tired of trying to draw the title screen manually with graphics commands (bad enough on the 128 which had Basic commands to do such things, but on the 64 you were talking peeks and pokes all over the place–someone really should have written this thing back in 1982!) so we wrote a program to do the work for us. You loaded the sprites, moved ’em around, hit a key, and it gave you the Basic code to re-create the screen, suitable for inclusion in your program. We never finished the game, but we got a cool $350 and international recognition (OK, so it was a dwindling audience, but how many high school kids can say they’re published authors at age 16?).

Now, the problem. General Media whittled Compute down until it was basically just another PC mag, abandoning the multiplatform support that made it so great (I read about my beloved Commie 8-bits but still got the opportunity to learn about Macs, Amigas and PCs–what could be better?), market share continued to dwindle, and eventually Guccione and GM sold out to Ziff-Davis, who fulfilled your subscription with a choice of mags (I remember I opted for PC/Computing). So the copyright went to Ziff-Davis, who never did anything with the old Compute stuff. A few years later, Ziff-Davis fell on hard times and eventually hacked itself up into multiple pieces. Who owns the old Compute stuff now? I have no idea. The copyrights are still valid and enforcable. I seriously doubt if anyone cares anymore whether you have the Nov. 1991 issue of Compute if you’re running MOB Mover on your 64/128 or emulator, but where do you go for permission?

The same goes for a lot of old software. Sure, it’s obsolete but it’s useful to someone. A 68020-based Mac would be useful to someone if they could get software for it. But unless the original owner still has his/her copies of WriteNow, Aldus SuperPaint and Aldus Persuasion (just to name a few desirable but no-longer-marketable abandoned titles) to give you, you’re out of luck. Maybe you can get lucky and find some 1995 era software to run on it, but it’ll still be a dog of a computer.

But do we have an unalienable right to abandoned intellectual property, free of charge? Sure, I want the recordings Ric Ocasek made with his bands before The Cars. A lot of people want to get their hands on that stuff, but Ocasek’s not comfortable with that work. Having published some things that I regret, I can sympathize with the guy. I like how copyright law condemns that stuff to obscurity for a time. (Hopefully it’d be obscure in the public domain too because it’s not very good, but limiting the number of copies that can exist clinches it.)

Obscurity doesn’t mean no one is exploited by stealing it. I can’t put it any better than Jerry Pournelle did.

I don’t like my inability to walk into record stores and buy Seven Red Seven’s Shelter or Pale Divine’s Straight to Goodbye or The Caulfields’ Whirligig, but I couldn’t easily buy them in 1991 when they were still in print either. But things like that aren’t impossible to obtain: That’s what eBay and Half.com are for.

For the majority of the United States’ existence, copyright law was 26 years, renewable for another 26. This seems to me a reasonable compromise. Those who produce content can still make a living, and if it’s no longer commercially viable 26 years later, it’s freely available. If it’s still viable, the author gets another 26-year-ride. And Congress could sweeten the deal by offering tax write-offs for the premature release of copyrighted material into the public domain, which would offer a neat solution to the “But by 2019, nobody would want WriteNow anymore!” problem. Reverting to this older, simpler law also solves the “work for hire” problem that exploits musicians and some authors.

All around, this scenario is certainly more desirable for a greater number of people than the present one.

From: Bruce Edwards

Dear Dave:

I am having a crazy computer problem which I am hoping you or your readers may be able to give me a clue to.  I do have this posted on my daily journal, but since I get very little traffic, I thought your readership or
yourself may be able to help.  Here’s the problem:

My wife’s computer suddenly and inexplicably became very slow when accessing web sites and usually when accessing her e-mail.  We access the internet normally through the LAN I installed at home.  This goes to a Wingate machine which is connected to the aDSL line allowing shared access to the internet.

My computer still sends and receives e-mail and accesses the web at full speed.  Alice’s computer now appears to access the web text at about the speed of a 9600 baud modem with graphics coming down even more slowly if at
all.  Also, her e-mail (Outlook Express) usually times out when going through the LAN to the Wingate machine and then out over the internet.  The LAN is working since she is making a connection out that way.

File transfer via the LAN between my PC and hers goes at full speed. Something is causing her internet access to slow to a crawl while mine is unaffected.  Also, it appears to be only part of her internet access.  I can
telnet out from her computer and connect to external servers very fast, as fast as always.  I know telnet is just simple text, but the connection to the server is very rapid too while connecting to a server via an http
browser is much much slower and then, once connected, the data flows so slow it’s crazy.

Also, dial-up and connect to the internet via AOL and then use her mail client and (external to AOL) browser works fine and is as speedy as you would expect for a 56K modem.  What gives?

I tried reinstalling windows over the existing set-up (did not do anything) and finally started over from “bare metal” as some like to say.  Reformat the C drive.  Reinstall Windows 98, reinstall all the drivers, apps, tweak the configuration, get it all working correctly.  Guess what?  Same slow speed via the aDSL LAN connection even though my computer zips out via the
same connection.  Any suggestions?

Sincerely,

Bruce W. Edwards

~~~~~~~~~~

Hi Bruce,

The best thing I can think of is your MTU setting–have you run any of those MTU optimization programs? Those can have precisely the effect you describe at times. Try setting yor MTU back to 1500 and see what that does. While I wholeheartedly recommend them for dialup connections, MTU tweaking and any sort of LAN definitely don’t mix–to the point that I almost regret even mentioning the things in Optimizing Windows.

Short of that, I’d suggest ripping out all of your networking protocols and adapters from the Network control panel and add back in TCP/IP and only the other things you absolutely need. This’ll keep Windows from getting confused and trying to use the wrong transport, and eliminate the corrupted TCP/IP possibility. These are remote, but possible. Though your reinstall should have eliminated that possibility…

If it’s neither of those things, I’d start to suspect hardware. Make sure you don’t have an interrupt conflict (rare these days, but I just saw one a couple weeks ago so I don’t rule them out). Also try swapping in a different cable or NIC in your wife’s machine. Cables of course go bad more frequently than NICs, though I’ve had horrible luck with cheap NICs. At this point I won’t buy any ethernet NIC other than a Bay Netgear, 3Com or Intel.

I hope that helps. Let me know how it goes for you.

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