5% of the time a gpupdate or gpupdate /force will fix the problem and the drives will immediately appear.Of the 30% of the time where a problem presents itself: The problem is mostly random, and does not seem to follow any particular user or Workstation. Sometimes it is both drives, sometimes it is one or the other. On Site A, both network drives show up, with maybe a 0.5% chance of failure (I have experienced a few boots where the drives don't show up correctly).Īt Site B, network drives fail to show up perhaps 30% of the time.nltest /dsgetdc always shows a local DC and correct local IP.echo %logonserver% always returns a local DC.dcdiag /test:dns /v /c /e reports PASS for ALL servers and ALL tests.As part of Group Policy, two network drives are mapped to shares on the Synology server.Each site has a local (on-site, same subnet) Synology storage server.Both networks are fully gigabit running on Cisco switches with certified CAT6 cabling.

ALL clients are Windows 10 Pro 64-bit with all updates.DNS records for each site ONLY have the two local DNS servers defined.Sites are correctly defined in Windows Sites and Services.Each site has 2 local (on-site, same subnet) Windows Server 2012 R2 Domain controllers.

Avg update blocking mapped drives