I am running 2 rigs which are completely identical. The first one runes 1709 win10x64 with beta blockchain drivers and does that pretty stable. sometimes the watchdog is restarting the rig but that's ok in anyway for windows.

The rig2 has the exact same architecture and hardware, but as i have been experiencing issues with 1709 setup and drivers i decided to go with 1703. installation is completely the same.
But after 2-3 days approximately the rig stops responding. the watchdog is not kicking in restarting the rig - i cannot figure out why. There is also nothing in the logfile which might help.