the solution has probably been posted, but i haven't seen my exact problem i recently bought a HTC Desire Z and when i broguht it home, i hooked it up to my wireless n router with MAC filtering and I believe WPA security. it was working fine until around sunday. it said i was connected to my network but i was not recieving or sending any data. any solutions? obviously i didn't change any settings around on my router, so it might be the phone..?