Ok, I have had my iPhone since day one(I know, I know I paid too much

). I have also had no problems with my WiFi access until last night. Even after modding it, I have had no issues with connecting to any WiFi point. All of a sudden last night, I can no longer get an IP from my home network. Arriving at work this morning, I notice I cannot get an IP from this network either. I can connect to the network, but in the settings screen I have no IP, or DNS, or Sub Mask, no router ID nothing...... This is starting to drive me crazy. I haven't added or removed, or changed anything on any of my networks, PCs or Routers... Anyone got any ideas?