I just had an avalon that was running fine for weeks suddenly stop working 
Red/yellow lights are on. The miner starts but it never does any work (hashrate is 0)
Where should I start looking for the problem?
Red/yellow lights are on. The miner starts but it never does any work (hashrate is 0)
Where should I start looking for the problem?
I had one do something similar. It turned out to be a bad USB cable connection inside of the case. The cable that runs from the built-in router to the front of the case makes poor contact with the hub where all of the power and data cables connect. Try pushing the cable to the right or left of the socket. My theory is the vibration of the fans eventually wiggled the cable enough to get it to disconnect. Good luck!
Woke up this morning with a very similar issue, on B3 unit running 20130821 firmware and LAN connection. I've been using SilverStone 1500W PSU so don't think PSU is the problem. I've opened Avalon up and the blue LED doesn't seem to be flashing anymore! It only does one brief flash when reconnecting the USB cable (to check the connections). Tried couple of different USB cables with the same results. Not sure, but looks like my TL-WR703N could be dead? I'm thinking the quickest solution might be connecting directly to PC to mine that way, cos looks like ordering a replacement TL-WR703N from Ebay would take ages to arrive. How do I connect avalon to computer via USB and mine that way? or any other ideas?