Had the same problem and the roll back worked for me.
Interestingly, I was only getting the 702 error in the live viewer window. I could still team render with Octane fine without the error.
Details: Asus EWS/USB3.1 Motherboard, with one 1070 onboard and four 1080TIs outboard. Was getting 702 errors in Octane live viewer and also while crypto mining. (But was fine team rendering Octane.) Latest windows 10 updates as of right now, which is January 2018.
Rolled back NVidia driver from 388.71 to 382.33 and seems to be working so far. This driver was so old that it didn't even come up in the NVidia search, I had to google the driver version specifically to find it. But seems to have worked.
Sounds like that registry edit mentioned here could be a better way to fix, I'll have to try that when things slow down.
On a side note, I think my future motherboards will be the cheaper slower Z270A, not these fancier EWS models. Z270A's might not be able to hold the faster CPUs but they've proven to be very solid reliable multi-GPU machines for me.
Thanks for the help mates!