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The DFS Replication service is stopping communication with partner DC3 for replication group Domain System Volume due to an error. The service will retry the connection periodically.

         Additional Information:              Error: 1723 (The RPC server is too busy to complete this operation.)              Connection ID: 3102F341-A9F9-469F-ACED-D8D4D6B4AF9B              Replication Group ID: 678AF27B-4AC7-459A-84CD-C1C04A6BEB1F          An error event occurred.  EventID: 0xC0001390             Time Generated: 05/12/2021   19:34:07             Event String:             The DFS Replication service failed to communicate with partner DC3 for replication group Domain System Volume. This error can occur if the host is unreachable, or if the DFS Replication service is not running on the server.  

The DFS Replication service is stopping communication with partner DC1 for replication group Domain System Volume due to an error. The service will retry the connection periodically. Additional Information: Error: 9036 (Paused for backup or restore) Connection ID: 92888B85-F6BD-4B62-BEB1-4EA4EA0046DD Replication Group ID: 678AF27B-4AC7-459A-84CD-C1C04A6BEB1F

windows-active-directorywindows-server-2019
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techcoor-9538 answered FanFan-MSFT commented

There is no answer to close this thread. What I will do is create new cases. Work on new cases first then come back.

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Hi,
Waiting for your updates.
If there is no progress, I would suggest you contact Microsoft Customer Services and Support to get an efficient solution:
https://support.microsoft.com/en-in/hub/4343728/support-for-business

Best Regards,

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techcoor-9538 answered

DFS Replication Event 4304
The DFS Replication service has been repeatedly prevented from replicating a file due to consistent sharing violations encountered on the file. The service failed to stage a file for replication due to a sharing violation.
Files are Quickbooks with QBW.TLG, QBW, extensions
To edit the replication filters for a replicated folder
Click Start, point to Administrative Tools, and then click DFS Management.

In the console tree, under the Replication node, click the replication group that contains the replicated folder with the filters that you want to edit.

In the details pane, on the Replicated Folders tab, right-click a replicated folder, and then click Properties.

On the General tab, edit the existing filters or add new filters, paying attention to the following restrictions:

You cannot create file or subfolder filters by specifying a full path, such as C:\Replicatedfolder\Temp or C:\Replicatedfolder\file.dat.

You cannot use a comma in a filter because commas are used as delimiters.

https://www.forsenergy.com/en-us/dfs2/html/1b743069-7690-4945-9d50-28fd8257aef5.htm

Changed file filter to ~, .bak, .tmp, .qbw, *.tlg

DFS Replication Event 4304
The DFS Replication service has been repeatedly prevented from replicating a file due to consistent sharing violations encountered on the file. The service failed to stage a file for replication due to a sharing violation.
This time the extension is .~tmp. Looks like another temporary file. Different folder
Changed file filter to ~, .bak, .tmp, .~tmp


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techcoor-9538 answered

Event 5008, DFSR
The DFS Replication service failed to communicate with partner DC2 for replication group Domain System Volume. This error can occur if the host is unreachable, or if the DFS Replication service is not running on the server.

Error: 1722 (The RPC server is unavailable.)

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DSPatrick answered

This error can occur if the host is unreachable, or if the DFS Replication service is not running on the server.

Does it ever succeed? If not I'd check the service is running and then check the ports are flowing between networks.
https://docs.microsoft.com/en-us/troubleshoot/windows-server/identity/config-firewall-for-ad-domains-and-trusts
https://www.microsoft.com/en-us/download/details.aspx?id=24009

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techcoor-9538 answered

The DFS Replication service is running on both servers.

Event 5004 DFSR indicates it can succeed

The DFS Replication service successfully established an inbound connection with partner DC2 for replication group name.

We covered the ports before. I do not know if it is a problem when port like 135 is not listening. Port 135 is enabled in Windows firewall.

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DSPatrick answered

Then it isn't blocked ports. If it mostly succeeds it may be for other reasons like problematic network connection. This is likely unrelated to the 4304

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techcoor-9538 answered

I moved the DSFR to another server to clear the problem. Only Domain System Volume replication group is left on original server.

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DSPatrick answered

Glad to hear problem is sorted out.

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techcoor-9538 answered

I am waiting for the errors to clear. When new replication groups are created there are errors.

Event 5012
The DFS Replication service failed to communicate with partner DC2 for replication group P. The partner did not recognize the connection or the replication group configuration.

Event 5004
The DFS Replication service successfully established an inbound connection with partner Dc2 for replication group P.

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techcoor-9538 answered

The error comes up when rebooting the server and when the server is backing up.

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