I have a network with one W2008 R2 server (AD controller) and 20 Windows10 workstations. The workstations gradually update to this year W10 (1607) - at the moment 7 of 20 are updated - and immediately after that they stop synchronize user roaming profiles with the server. After every user login onto workstation a message appears, saying that "the workstation can not synchronize with roaming profile and will use local copy of it instead" - no other messages in any log. I don't know where to start...

  • Any other info in the eventlog? it can be anything, like a antivirus not compatible with the anniversary upgrade. (like mcafee 8.8, the patch is not out yet last time I checked) – yagmoth555 Sep 29 '16 at 20:51
  • Still digging, but at the moment can not find anything useful... The antivirus is latest ESET Endpoint Security on workstations, and ESET File Security on server. – Adrian Brosz Sep 30 '16 at 7:26
  • OK, found it. There was a problem with new profile folders - W10 Anniversary Update uses 'user.v6' folder instead of 'user.v5'. But even with this not all user profiles update properly – Adrian Brosz Oct 6 '16 at 12:17

All profiles have updated, after some days. So the problem was only because of lack of properly accessible 'user.v6' folders.

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