My unlocked 3gs v. 4.0.1 has stopped connecting to the internet. I use my home wifi and under wifi settings it tells me that I'm connected to my network, has the blue check mark and the full blue arches next to it. But when I go to Safari, it tells me it "cannot open page because it is not connected to the internet." My imac connects to this same network with no problems. I've tried restarting everything, "forgetting" the network, and re-entering my password. I am afraid to "reset network settings" in case it messes up my unlock. I can't seem to find any posted solutions. Help!