I have 3 rigs on Asrock h110 BTC+ nvidia based (1070 + 1060) on different PSU's and connected to different routers. All of them has very unpleasant problem: once or twice or thrice per day the system hangs and hangs the entire network. This happens only on nvOC, on smos or on ubuntu 16.04 - ok about 2 days. Tried: disable (and remove) dhcp, another router, disable network manager, usb-lan but problem still here. Any thoughts?
I have one of those motherboard on nvOC but with 10 GTX-1070 + 2 GTX-1080 Ti and I never had your problem. Im still on v19 though.
The only downtime I ever had was 2 weeks ago when the Nvidia drivers tried to autoupdate.
Please make sure to report back if you ever find the problem.
TYIA