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Home > Success Center > Patch Manager > Patch Manager - Knowledgebase Articles > Error displays after synchronizing the WSUS server

Error displays after synchronizing the WSUS server

Last Updated: June 26, 2018


When you open the Patch Manager Administrator Console and synchronize the WSUS server, the following error displays in the Synchronization Details:



All Patch Manager versions


Communication issue with the downstream server reaching the upstream server during synchronization. This issue may be caused by a networking issue or improperly configured settings in the downstream WSUS server.


Verify the WSUS settings:

  1. Review Set up a hierarchy of WSUS servers
  2. Verify that the hostname information is correct.
  3. Verify that port 80 (443 for SSL) is the default port for servers running Windows Server 2008 R2 and earlier. Port 8530 (8531 for SSL) is the default for WSUS on Server 2012 R2 and later.
  4. Verify the network connection to the upstream server. Ensure that the ports are open and the hostname can be resolved by DNS.


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