said by Mangix:linksys wrt54g routers had this problem in the beginning as well. They would burn out over time due to too much power and wi-fi really sucked. Then that DD-WRT came about and essentially cut the power in like 1/2, which fixed a wide range of problems. said by UverseTech:
The 3800s should have been removed 3 years ago when the 3801s came out. The signal goes out slowly and eventually just goes..
This is pure speculation on my part, but it may have something to do with the default transmit power. Most SOHO routers transmit at 100mW(20 dBi) by default whereas the 2Wire U-Verse Gateways tend to transmit at 400mW by default. I suspect this is causing the wifi radio to fail.
A small note: I have been running a 3600HG-V at the transmit set to 25mW(faster speeds for some reason) for almost a year and have 0 issues.