WSUS |Unable to connect to the remote server -

Question

Hello Team,

Getting below message in one of the downstream WSUS server. Tested that ports are connecting to upstream server

Please let me know how the below error does can be solved.

Checking for supported version of WSUS (min WSUS 4.0)

Checking runtime v4.0.30319...

Found supported assembly Microsoft.UpdateServices.Administration version 4.0.0.0, file version 6.2.14393.4046

Found supported assembly Microsoft.UpdateServices.BaseApi version 4.0.0.0, file version 6.2.14393.5127

Supported WSUS version found

Attempting connection to local WSUS server

System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it [::1]:8530~~ at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)~~ at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)~~ --- End of inner exception stack trace ---~~ at Microsoft.UpdateServices.Administration.AdminProxy.CreateUpdateServer(Object[] args)~~ at Microsoft.SystemsManagementServer.WSUS.WSUSServer.ConnectToWSUSServer(String ServerName, Boolean UseSSL, Int32 PortNumber)

Failed to set WSUS Local Configuration. Will retry configuration in 1 minutes

Attempting connection to local WSUS server

System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: No connection could be made because the target machine actively refused it [::1]:8530~~ at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)~~ at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)~~ --- End of inner exception stack trace ---~~ at Microsoft.UpdateServices.Administration.AdminProxy.CreateUpdateServer(Object[] args)~~ at Microsoft.SystemsManagementServer.WSUS.WSUSServer.ConnectToWSUSServer(String ServerName, Boolean UseSSL, Int32 PortNumber)

Failures reported during periodic health check by the WSUS Server la.contoso.com. Will retry check in 1 minutes

Waiting for changes for 1 minutes

Timed Out...

Answer 1

Hi, @Boopathi S

Thank you for posting in Microsoft Q&A forum.

You may use telnet to test if the port is blocked by firewall.

Here is a similar thread for your reference:

https://learn.microsoft.com/en-us/archive/msdn-technet-forums/72b7c69c-51f9-4166-89b8-a46c72b7ef4d

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