I tried everything I could think of and that was sggested here. none of them helped:
1 - replaced my ipad2 twice!
2 - Restored to factory setting.
3 - Reset network connection.
4 - Turned off auto brightness (which of course has nothing to do with wifi connection, but some comments recommended that)
5 - Changed wifi settings in the router, which already has wireless N (relatively new router)
If I turn off the encription, the problem seem to go away, but I don't want to do this. I also don't want to replace my router, since it has no problems with any other wifi device, including other Apple devices.
The problem is even worse, when looking at the wifi connection setting, I can see that it looses all the IP info about every minute! Usually it reconnects automatically immidiatly, but not all the time. When it doesn't, this is when it become a problem. I looked at both my iphone and ipod touch at the same time, none of them is loosing the connection. It is only the iPad!
What I don't get, is how Apple can get away with it for so long, and pretend there is no issue?? There was big noise a year ago when the iPhone4 had a slight antena problem which happened only when touching in certain place, so had an easy workaround, yet everybody talked about it. At the same time, no one is making noise about not beeing able to use their ipad2 with wifi at all?? I don't get it. Any bloggers out there can spread the word?