I got a LA6M but, unfortunately, one of the controllers is broken  . One controller conects to my router without any issues but the other one is not recognized. It just blinks but the nothing shows up on the router. If I swap it out, the other controller works fine. Ive tried switching cables etc, but nothing fixes it. What are my options now? I am trying to run all 20 on one controller but it lags, restarts every 5 minutes, and I cant get more than 3mh total out of all 20 miners. It took so long to get the LA6M that I have doubts that I will be able to get a replacement controller from asiabtc within a few weeks. Is it possible to buy the same controller on amazon and add the default gridseed firmware? Is the only other option to hook half of them up to a computer and run them that way? I would like to avoid direct usb to computer because I wont be able to deactivate the sha-256 option. Any other ideas?