Month: June 2017

WIndows Server 2016 and Sync Host

Published on in Windows Server by Elvis

Many administrators (including me) are not happy with two services in Server 2016. This services are OneSyncSvc (synchronizes mail, contacts, calendar and various other user data) and Download Maps Manager (for application access to downloaded maps) and are really not critical on server OS.


This is the reason why, you can disable them in almost all cases without any deep research. Anyway, when you try to disable OneSyncSvc from services console, you will receive an error, as this service cannot be disabled. At this point, use a trick and disable both services form elevated command prompt using commands:
sc config “OneSyncSvc” start= disabled
sc config “MapsBroker” start= disabled
Of course, before you run this commands, services have to be stopped, otherwise you will receive an error. You can do this also from command prompt:
sc stop “OneSyncSvc”
sc stop “MapsBroker”
This two simple commands will put services into startup type “disabled” and errors in Server Manager that are related to non-running services will disappear. Problem solved.

Windows ADK on Server 2016 – Unsigned driver?

Published on in Management, Windows Server by Elvis

If anyone tries to install the new Microsoft ADK (for Windows 10 Version 1703 – 10.1.15063) on Windows server 2016, you receive the error that a driver is not digitally signed. Well, Microsoft drivers are not signed? Something is wrong…
Actually, according to this post, they really have a problem and there is a workaround with disabling the secure boot. But this is not recommended and is not aligned with best practices – so you don’t want to do it.
Anyway, this is the only way you can install ADK on server 2016 and I did it. I have removed the previous (broken) installation, disabled Secure boot and reinstalled ADK. After a successful installation, I reenabled Secure boot and things still went wrong. I was unable to mount ADK boot image (to use in SCCM or MDT). Well, in this post it is explained another workaround (yes, I know…). Set the registry as is explained and it should work. I just hope that all other functionalities in ADK now are working OK.

DFS still not replicating Sysvol

Published on in Windows Server by Elvis

In addition to my previous post on reestablishing synchronization of SYSVOL folders between DCs, I received some comments that going true steps in the posts is not possible to reestablish sync. After this I diagnosed some situations when friends allowed me to connect and there was always a similar situation: DFS replication stops to work after dirty shutdown (event 2212 and 2213) and nobody saw it for a long time – more than 60 days. This will cause an Error 4012 where you can see that the server was “disconnected” for a time, which is longer than the time allowed by the MaxOfflineTimeInDays parameter (60 days by default).
To verify how long are DCs not synced, use this command line (execute from elevated command prompt):

For /f %i IN (‘dsquery server -o rdn’) do @echo %i && @wmic /node:”%i” /namespace:\\root\microsoftdfs path DfsrMachineConfig get MaxOfflineTimeInDays

If the result is more than 60 days, you have to extend MaxOfflineTimeInDays parameter on all servers where you have DFS replication in error (State = 5) and where MaxOfflineTimeInDays parameter is greater than 60. Use this command line on any DCs that are in error:

wmic /namespace:\\root\microsoftdfs path DfsrMachineConfig set MaxOfflineTimeInDays=365

Of course you can replace the number 365 with any number you want, but it has to be greater than the displayed MaxOfflineTimeInDays value.
Wait for few minutes and resume replication as is described in the previous post. It should work.
I suggest also to put back the value MaxOfflineTimeInDays parameter to previous value:

wmic /namespace:\\root\microsoftdfs path DfsrMachineConfig set MaxOfflineTimeInDays=60