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DFSR Event ID 5008 RRS feed

  • Question

  • Hello All,

    I'm constantly getting DFSR Event 5008. I have 2 DC/DNS/DHCP/DFS Windows 2012 servers. both servers only get Event 5008 every few hours. No replication between servers happening. RPC, DFS replication, Firewall looks fine. What in particular should I look in to troubleshoot this issue.

    DC1 event 5008

    The DFS Replication service failed to communicate with partner DC2 for replication group Home-Replication. This error can occur if the host is unreachable, or if the DFS Replication service is not running on the server.
    
    Partner DNS Address: DC2.domain.com
     
    Optional data if available:
    Partner WINS Address: DC2
    Partner IP Address: 
     
    The service will retry the connection periodically.
     
    Additional Information:
    Error: 1722 (The RPC server is unavailable.)
    Connection ID: 787BFD7E-4D7E-4483-93C0-44F91F91DF5A
    Replication Group ID: 0A4AA0C0-4A91-4615-ABE2-DDBD7B94E974


    DC2 event 5008

    The DFS Replication service failed to communicate with partner DC1 for replication group Home-Replication. This error can occur if the host is unreachable, or if the DFS Replication service is not running on the server.
     
    Partner DNS Address: DC1.domain.com
     
    Optional data if available:
    Partner WINS Address: DC1
    Partner IP Address: 
     
    The service will retry the connection periodically.
     
    Additional Information:
    Error: 1722 (The RPC server is unavailable.)
    Connection ID: 0BDBAA79-82A2-4C73-895B-F3556A83ACB8
    Replication Group ID: 0A4AA0C0-4A91-4615-ABE2-DDBD7B94E974
    


    Thanks,
    • Edited by jpatel6001 Wednesday, September 11, 2013 4:56 PM
    Wednesday, September 11, 2013 4:25 PM

Answers

  • Hi,

    Based on the experience, TCP off-loading on the network level may be causing the issue.

    Please add these following registry values to all DFSR replications partners to see it can be helpful.

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

    Value =DisableTaskOffload
    Type = DWORD
    Data = 1

    Value =EnableTCPChimney
    Type = DWORD
    Data = 0

    Value =EnableTCPA
    Type = DWORD
    Data = 0

    Value =EnableRSS 
    Type = DWORD
    Data = 0

    Please note: You will need to reboot the server for these changes to take into effect.

    After the reboot monitor replication for the amount of time to see if the issue can be resolved.

    You could refer to the below thread to troubleshoot the issue:

    Errors with DFSR
    http://social.technet.microsoft.com/Forums/windowsserver/en-US/3778427a-a594-4f1d-9c97-d8d1e6a56a83/errors-with-dfsr

    Regards,

    Mandy Ye

    Friday, September 13, 2013 6:22 AM
    Moderator

All replies

  • What is the status of the "DFS Replication service" eventhough you are not using it. Can you try with options disabled Etc.. ?

    Bijumon

    Thursday, September 12, 2013 5:00 AM
  • Hi,

    Based on the experience, TCP off-loading on the network level may be causing the issue.

    Please add these following registry values to all DFSR replications partners to see it can be helpful.

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

    Value =DisableTaskOffload
    Type = DWORD
    Data = 1

    Value =EnableTCPChimney
    Type = DWORD
    Data = 0

    Value =EnableTCPA
    Type = DWORD
    Data = 0

    Value =EnableRSS 
    Type = DWORD
    Data = 0

    Please note: You will need to reboot the server for these changes to take into effect.

    After the reboot monitor replication for the amount of time to see if the issue can be resolved.

    You could refer to the below thread to troubleshoot the issue:

    Errors with DFSR
    http://social.technet.microsoft.com/Forums/windowsserver/en-US/3778427a-a594-4f1d-9c97-d8d1e6a56a83/errors-with-dfsr

    Regards,

    Mandy Ye

    Friday, September 13, 2013 6:22 AM
    Moderator