Hello! I have same problems. Units are not detected by controllers and I guess I need to reflash the firmware on the MM (I have already tried to change auc, raspberry, wires and so on). Could you tell me how can I flash the firmware on the MM if the controller is not “seeing” devices? Thank you in advance.
same problem here , i have 5 Avalon921 3 of them suddenly stopped working - same setting and same configurations 2 of them which i installed recently working fine.... those 3 show green light on back of miner and on AUC ....but never shows the device alive just blank!