i have a wifi issue that popped up tonight too...
i was out with a buddy that has a iphone and he wanted to test download speed of our 3g ver mine. he had an app called speedtest.net. so i checked and we have it too. so i downloaded it, it worked great. i was around 1.8 meg down and he was almost a meg. the place we were at had wifi, so we tried that too. i went up to a little over 2meg down and he was about the same. we ran each a few times and it varied a bit. my verzion always showed faster thou, so i don't see at&t's hype about being the fastest at all around here. but now when i get home and try to connect to mine. it connects, but no data will go thru. my home wifi has worked before, my laptop is working on it. and i even tired a unlocked singal from next door, it says it connects, gets the ip and then shows connected, but nothing.
my phone is about 3 days old. did the wifi just somehow break? or maybe the app killed it? i've tried uninstalling the speed test app, doing a restart and a battery pull and nothing. it shows connected, good signal, but nothing loads, not even google talk can log in till i turn wifi off.
any thoughts? i did try the wifi fixer app, but it didn't seem to do anything.