arduino yun - no wifi - no wired lan

I have a yun and it appears totally dead as far as wifi or networking is concerned. When I first received it, the wifi worked. This board was sold and bought in the USA. I have pressed the wlan reset for more than 30 seconds numerous times with no change. I’ve tried the wired lan and I get nothing as well. I know this is all vague but I have nothing to go on since I can’t access the linino section of the arduino. Is there anything I can try to revive this thing?