I found a couple of old Linksys WRT54G routers and decided to load DD-WRT on them. The first one, an abandoned-by-Linksys WRT54GS model, gave me some trouble, which led me to buying a TP-Link unit to run DD-WRT on. The second unit, which was a vanilla WRT54G, still had firmware available on Linksys’ site, so the upgrade was somewhat straightforward–it went by the book, at least. I installed the latest Linksys firmware, then installed the DD-WRT mini build, then upgraded to the full build.
After getting DD-WRT running on it, I configured it to behave as an access point on channel 6. I was surprised at how strong the signal was. Years ago, I ran a pair of WRT54G routers, and they struggled to cover the house. It’s possible that was due to age, or perhaps I was getting too much interference from my neighbors since we were probably all running our wireless on the default channel in those days because none of us knew better.
As for my WRT54GS, when I tried to upgrade it, I got a nice message stating, “Upgrade are failed!” Nice. Too bad it didn’t add “All your base are belong to us.” That’s when I learned you need to install the last Linksys upgrade first, then upgrade from that. So I downloaded that from some forum, tried flashing that, and received the same message. So I set it aside, figuring I bricked the unit. A few days later, after getting the WRT54G running, I fired up the GS, visited its configuration page, and… found DD-WRT running on it! Upgrade are failed? More like all your upgrade are belong to ME.
In all honesty, I probably got lucky. It’s always best to go by the book on things like this.
The WRT54G is limited, of course, to 802.11b and 802.11g (54 megabits max) but as a complement to a more modern router, it still has a few tricks left. If you have one laying around, it won’t cost anything aside from about 30 minutes’ worth of effort to load DD-WRT on it and see what it can still do for you.
And if you don’t happen to have one laying around, it’s not hard to find a used WRT54G. I find them at estate sales, garage sales, and rummage sales pretty frequently because a lot of people set them aside when they either buy newer, faster routers or their ISP forces them into an all-in-one unit. Don’t pay too much for it, because it’s aging technology, but I’d say they’re worth grabbing for $5 or less.