WSUS update errors since 2021-02-04 06:56:44.560 UTC

Question

My WSUS synchronisations have failed over the last week.
Windows server 2008 R2 Enterprise

WSUS error: Unable to resolve the specified upstream server name

Details:

WebException: The request failed with HTTP status 404: Not Found.
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at Microsoft.UpdateServices.ServerSyncWebServices.ServerSync.ServerSyncProxy.GetAuthConfig()
at Microsoft.UpdateServices.ServerSync.ServerSyncLib.InternetGetServerAuthConfig(ServerSyncProxy proxy, WebServiceCommunicationHelper webServiceHelper)
at Microsoft.UpdateServices.ServerSync.ServerSyncLib.Authenticate(AuthorizationManager authorizationManager, Boolean checkExpiration, ServerSyncProxy proxy, Cookie cookie, WebServiceCommunicationHelper webServiceHelper)
at Microsoft.UpdateServices.ServerSync.CatalogSyncAgentCore.SyncConfigUpdatesFromUSS()
at Microsoft.UpdateServices.ServerSync.CatalogSyncAgentCore.ExecuteSyncProtocol(Boolean allowRedirect)

In the SoftwareDistribution.log:

2021-02-04 06:56:44.029 UTC Info w3wp.65 AuthorizationManager.GetUpstreamServerUriHeader Found config says USS is MU site
2021-02-04 06:56:44.154 UTC Info WsusService.19 SusService.ValidateServerCertificate CheckValidationResult Succeeds: CertOK
2021-02-04 06:56:44.154 UTC Info WsusService.19 ServerCertificateValidator.IsHostAllowedException Requested host: sws1.update.microsoft.com
2021-02-04 06:56:44.154 UTC Info WsusService.19 ServerCertificateValidator.VerifyServerCertificate SSL validation succeeded.
2021-02-04 06:56:44.560 UTC Warning WsusService.19 WebServiceCommunicationHelper.ProcessWebServiceProxyException ProcessWebServiceProxyException found Exception was WebException. Action: Retry. Exception Details: System.Net.WebException: The request failed with HTTP status 404: Not Found.
at System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClientMessage message, WebResponse response, Stream responseStream, Boolean asyncCall)
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at Microsoft.UpdateServices.ServerSyncWebServices.ServerSync.ServerSyncProxy.GetAuthConfig()
at Microsoft.UpdateServices.ServerSync.ServerSyncLib.InternetGetServerAuthConfig(ServerSyncProxy proxy, WebServiceCommunicationHelper webServiceHelper)

(I feel that this server has had all the relevant patches applied, but I am going back to make doubly sure KB4484071 is done. In any case, the SSL looks to not be the problem?)

Answer 1

Hi all,
It seems to be fixed by Microsoft.
No actions required from our side and updates are downloading now.

Regards.

Answer 2

Hi everybody,
I have the same issue and it seems that more people with other versions too (https://learn.microsoft.com/en-us/answers/questions/262172/wsus-sync-failure.html?page=2&pageSize=10&sort=oldest).
I'm looking for a possible solution, but I can't find it.
If you find a workaround, I would appreciate you if you share the info.

Thank you so much.
Regards.
Edu

Answer 3

Hello Sam,

Thanks for your posting on Q&A.

According to this link, please help to confirm whether the KB4039929 or a later-version update package has been installed on the WSUS Server or not. If not, we could try to install the update first to see whether this issue will be resolved or not.

In addition, the Windows Server 2008R2 Enterprise has already out of support. In order to get the better support, it is recommended to upgrade to the last version.

Thanks for your time and have a nice day.

Regards,
Rita

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Answer 4

Thanks RitaHu-MSFT.
The download links for those updates do not work.
http://download.microsoft.com/download/5/3/C/53CD6658-E03C-47AD-80B0-25F85C25644F/WSUS-KB4039929-x86.exe
"404 - file not found"

Answer 5

Hi Sam,

Thanks for your response.

I'm sorry that the above step isn't helpful. In my opinion, the Windows Server 2008R2 is out of support.
Reference picture:

In order to get the better support, it is recommended to upgrade to the last version.

Thanks for your understanding and cooperation.

Regards,
Rita

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