The issue remains. Rig have restarted about half an hour ago, but EthMan shows that it stays offline. Choosing "view miner console" opens page with working rig.
I have static local ip on miner, so I think, the problem is not in dns
Damn. Seems at least that this one is not the cause.
Another try: Does anybody of you guys who encounters this problem use the new features like encrypted connection and/or authentication for the management? I don't...
And can you reproduce this "lock" by sending a restart command to a read only managment rig like I wrote before?