Hi I've always been able to connect to my home wifi, but lately it stopped working for no reason - after i performed a general reset of the phone and changed my sim card, after the phone being switched off for a week. The problem is that i can detect the network and input the password just fine, and in the wifi settings, it shows a tick and I am connected to the network with full signal strength. However next to the battery icon, there is no wifi "fan" signal, and i am still on the 3G network. Whenever I try to enter the internet I can tell I'm not on wifi as it is very slow. Also I turned it to airplane mode, and turned wifi back on and it says i am connected, but when i access safari it says no internet connection - clearly I am not connected at all. Whenever i boot up the phone again it also takes as long as 1 minute or 2, and upon restarting, it says i have incorrect password for my wifi, however when i enter in the exact same password the phone accepts it. I have tried: - resetting network settings - forgetting network and re-entering (i have done this so many times that the phone now automatically detects the network anyway (it is supposed to be a hidden network) - full reset in itunes - switching on and off - switching to airplane mode and off The router works fine with my computer and with other computers in the house, and previously could work with the iphone. I haven't been able to reset the router or change the router password because for some reason I can't access the configuration page. To clarify, the network worked perfectly until recently. I'm using an iphone 3G with latest software and no jailbreak. Help please?