DFS Replication WMI synchronization or connection object not found/ RPC server unavailable

Russeller 1 Reputation point
2020-10-02T22:24:38.33+00:00

I have x2 servers for which I would like to now configure DFS Replication from server 1 to server 2, I have already done an initial seed of the data using Robocopy copy which has worked very well. On the server 2 I already have DFS namespace configured and the folder targets are working well for the users however I now want to configure a new DFSR group from server 1 to server 2, the replication only needs to be one way so server 1 to 2 is enabled in the DFSR connections but I have server 2 to 1 disabled so no data is replicated back to server 1.
The DFSR Group is created without any issue whatsoever however after the initial root level folders are replicated to server 2 from 1 nothing more happens, actual files are being replicated etc. If I go to select the "Replicate Now" option I get the below message;

29875-image.png

After receiving the above message, I have done a dfs propagation test then checked to see the test results...the results show that the test is "Pending arrival"...researching this issue further and from a variety of sources on the web I have run the commands to rebuild the WMI;
• cd /d %windir%\system32\wbem
• for %i in (.dll) do RegSvr32 -s %i
• for %i in (.exe) do %i /RegServer

  1. type cd C:\Windows\System32\wbem\AutoRecover
  2. type for /f %s in (‘dir /b *.mof *.mfl’) do mofcomp %s’

Open a CMD prompt in %windir%\system32\wbem

type mofcomp dfsrprovs.mof

net stop winmgmt
net start winmgmt
net start iphlpsvc
net stop dfsr
net start dfsr
The above commands have come from multiple sources of information which I have found on the web, I have also checked that “Authenticated Users” have Read rights on the DFSR object within the AD\System\DFSR-GlobalSettings for the replication group which I have created, DFSDIAG POLLARD has also been ran – all commands have completed successfully.
If I then go to select “Replicate Now” I then receive the below error;
The DFS Replication service is stopping communication with partner server2 for replication group testdfsr due to an error. The service will retry the connection periodically.

Additional Information:
Error: 1726 (The remote procedure call failed.)
I have done a variety of tests and run through a variety of commands to try and resolve this very frustrating issue without success.
Please let me know if you have any further suggestions on how this issue can be resolved?

Thanks,

TheRusseller

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Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Daisy Zhou 18,721 Reputation points Microsoft Vendor
    2020-10-15T07:31:03.51+00:00

    Hello @Russeller ，

    Thank you for posting here.

    For the original error message, we can refer to the similar case below.

    File Replication and 2008 R2 standard
    https://social.technet.microsoft.com/Forums/en-US/583182b6-49e8-4836-970b-a881c2d52773/file-replication-and-2008-r2-standard?forum=winserverfiles

    Best Regards,
    Daisy Zhou

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