See this thread for original issue. http://www.linksysinfo.org/forums/showthread.php?t=55054 Today we upgraded to basic 2 at our house which involved taking a filter off of our line at the power lines. I tried my linksys wrt54g router to see if it would work and it did get a WAN IP address. I was using firmware v3 and also tried with 4.21 I had to disable the firewall in order for it to take... however now I'm having the same problem.. I can get a wan ip from my cable modem now, and was able to ping google and yahoo from a wired computer, but wasn't able to get to any websites or anything. Then I noticed the wan ip dropped and was again at 0.0.0.0. Now I am back on my netgear which is working perfectly I might add... WHy would it take an IP for only a few minutes then drop it?