My faulty hashboard came a week ago from repair and the whole process took 3 weeks from the time I send it and cost me $90 at all (Thank's for the help with shipping for Deep In The Mines LLC). 
However, the next problem was appeared with my L3. For a few days I can not log in to the miner ( ip address doesn't answer ), so I can not change the settings and monitor it through my local network. I tried the power cycle of the miner and the router. I disconnected power from controller and hashboards but it didn't help. Miner still hashing but the only way to monitor it is from the pool site. I did not try hard reset because I'm afraid if it is a problem with the controller then I wont have the ability to change the default settings later. Any suggestions, if it's either software or hardware problem.
However, the next problem was appeared with my L3. For a few days I can not log in to the miner ( ip address doesn't answer ), so I can not change the settings and monitor it through my local network. I tried the power cycle of the miner and the router. I disconnected power from controller and hashboards but it didn't help. Miner still hashing but the only way to monitor it is from the pool site. I did not try hard reset because I'm afraid if it is a problem with the controller then I wont have the ability to change the default settings later. Any suggestions, if it's either software or hardware problem.