I got a new router a month ago and was using my iphone 4 (IOS 4.3.3) and everything was fine. When I updated my iphone to IOS 5.0 and jailbroke it, it started acting weird with my wireless network, and by weird I mean it doesn't connect to my router when I ask it, instead I have to leave it and wait for it to connect on it's own, which sometimes doesn't happen for longer than a day. Usually when it connects it stays connected for as long as I'm in the wifi's range, but when I leave home and come back later, it won't connect. Sometimes it connects for a few seconds then it disconnects. I figured the problem was caused by the lease time (set to 2 hours), it restarts almost as soon as my phone connects. I tried doing a lot of things (updated my router, restarted my phone, turned off wifi then back on, rebooted router, forgot the network then added the password and everything again) and nothing worked. My macbook pro and my roommate's laptop connect with no problems, but both our iPhones 4 (IOS 5) don't (his iPhone isn't jailbroken). Any help would be much appreciated.