Hi
I have never tried resetting the network setting, but rebooting has always worked. Anyways having to do resetting, rebooting or disabling wifi while using 3G etc... to make the my Internet work is no way near an acceptable
solution. This should just work, period.
Regarding your last question:
Yes, as a matter of fact I did restore from an IPad 2. I guess this could be a reason, like you say maybe there is a conflict between the IPad 2 network parameters and the new iPad. But I am a bit baffled as to why Apple has not announced a solution to this problem yet.
I will try to do a full restore and set it up as a new unit to see if anything changes.
Also I am not impressed by the Wifi reception on the new IPad. The Internet speed seems to be slower than on my IPad 2, but I guess it could be my imagination. I just hope Apple doesn't make me regret leaving my IPad 2.