Originally Posted by cikymiky
I made upgrade for the new software 2.0 and from this time i face a problem with my wifi that it dosen't work, does anyone have any idea to solve this problem ???
There are a number of checks and actions to diagnose and correct. The easiest include performing a reset on your iPhone (home/power button); resetting network settings; turning off and on your wireless router; going into your router settings to verify that access is not being denied (my router MAC filters; I need to specify the specific MAC addresses of the devices I am permitting on my network).
Try going to a public hotspot and try to access the internet there.
Worst case scenario, go to Apple Store.