I also have this problem. Worked fine for 3 weeks.
by Rerve - 8/26/12 7:55 PM
I've reset about 20 times. Reset my router also.
The TV can't find any of the multiple wifi networks that every other device I have can find.
Worked fine for 3 weeks, now it just times out when searching. Oddly, if I turn the TV on and quickly go into network setup it finds all the networks but after 2 seconds the screen disappears?