Hi, I'm new to this forum and have done a quick search but can't seem to find this exact problem, so apologies if I've missed another thread that covers it. My 3G has suddenly stopped being able to connect to my home WiFi network for some inexplicable reason. I first got an error message asking me to input the password, which I did (several times), but it simply told me I had put in an incorrect password (I know I didn't). Now it's not even listing the network at all. I've tried manually inputting the name and security details but it tells me it's 'unable to join', with no explanation as to why. I can still connect to the web on a 3G connection, and I know there's no problem with the WiFi network as I'm posting this message right now from a laptop that's connected to it. The phone itself used to happily connect to the network whenever I was at home, so this is very frustrating. It doesn't appear to be connected to any software upgrade - I've upgraded the OS to 4.0 (and wish I hadn't!) but this problem started later than that. I've tried resetting the router, resetting the network settings and resetting all settings. I hate iTunes with a passion so am trying to avoid doing a complete restore - so before I start, has anyone else found this problem and have a solution?!