Hi,
We received a message from Huawei with a temp solution and a date from microsoft :
"Just got feedback from our HQ, please see below and the attached for the solutions, you can follow the attached to roll back to the previous version to fix this issue temporary, or modify static IP to temporary fix this issue .Microsoft will be releasing
the patch around Nov 28,2017."
Thanks Pierre,
This more or less aligns with where "Microsoft Support" left it with me (although I didn't have any patch date at that stage). I am happy to run with the rolled back 1703 version in the interim which is all working fine.