I have tried changing channels and tweaking and still after a few hours or so it will drop the signal. I contacted Linksys and after much debate they told me to RMA it.. I did and they sent me a replacement, (new) WRT54G - ver 5.0 router. Worked well for about 6 hours and then it started dropping the signal.
I then did some study on Linksys wireless routers and found that over the years of producing the WRT54G router they have changed. versions 1.0 & 2.0 were the best produced. They were the only WRT54G routers that came with a mini PCI wireless card inside and when Linksys was not owned by Cisco, and the software was Linux based.
The new WRT54G ver 5.0 wireless router has switched from Linux OS to Vx works OS - cut ram in half and flash in half.
At the office we offer a wireless service to the public and have had quite a number of customers complain about the Linksys WRT54G ver 5.0 wireless router dropping signal.
I found that you can upgrade the Vx works OS to Linux and cure the problem of dropped signals.
Though my question is.. Is anyone else having this problem with dropped signals and what did you do to fix it ?