OP, I know you don't want to hear this, but I've been having this problem since launch. I've been through every forum I can find. They all have a million suggestions, but none of them work. I haven't seen anyone else with a complete lack of support for WiFi until you. I've resigned myself to just using 3G until the first OTA update. If that doesn't fix it, but I'm at a loss. It seems unlikely to be a hardware issue, so a replacement phone is unlikely to help. I'm sorry to be unable to provide any help, but you're not alone. My phone will connect to a network the first time, and but it rarely ever even recognizes its presence a second time.