SOLVED WSUS issues: HTTP status 400: Bad Request

[trekkeriii]

Getting the following error for the SMS_WSUS_CONFIGURATION_MANAGER:

Severity,Type,Site code,Date / Time,System,Component,Message ID,Description
Error,Milestone,FMC,8/22/2018 4:00:07 PM,SCCMSITE16.fmchealth.org,SMS_WSUS_CONFIGURATION_MANAGER,6600,WSUS Configuration Manager failed to configure upstream server settings on WSUS Server "SCCMSITE16.fmchealth.org".    Possible cause: WSUS Server version 3.0 SP2 or above is not installed or cannot be contacted.  Solution: Verify that the WSUS Server version 3.0 SP2 or greater is installed. Verify that the IIS ports configured in the site are same as those configured on the WSUS IIS website.

I checked the WCM.log (attaching):

System.Net.WebException: The request failed with HTTP status 400: Bad Request.~~   at Microsoft.UpdateServices.Administration.AdminProxy.CreateUpdateServer(Object[] args)~~   at Microsoft.SystemsManagementServer.WSUS.WSUSServer.ConnectToWSUSServer(String ServerName, Boolean UseSSL, Int32 PortNumber)    SMS_WSUS_CONFIGURATION_MANAGER    8/22/2018 4:00:07 PM    40316 (0x9D7C)

Event Viewer log for WSUS

- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
  <Provider Name="Windows Server Update Services" />
  <EventID Qualifiers="0">12072</EventID>
  <Level>2</Level>
  <Task>9</Task>
  <Keywords>0x80000000000000</Keywords>
  <TimeCreated SystemTime="2018-08-29T13:44:18.000000000Z" />
  <EventRecordID>353348</EventRecordID>
  <Channel>Application</Channel>
  <Computer>SCCMSITE16.fmchealth.org</Computer>
  <Security />
  </System>
- <EventData>
  <Data>The WSUS content directory is not accessible. System.Net.WebException: The remote server returned an error: (400) Bad Request. at System.Net.HttpWebRequest.GetResponse() at Microsoft.UpdateServices.Internal.HealthMonitoring.HmtWebServices.CheckContentDirWebAccess(EventLoggingType type, HealthEventLogger logger)</Data>
  </EventData>


  </Event>

Something about WSUS content not accessible?

Restarted the WSUS service, have rebooted. Started after updating to SCCM 1802. WSUS is not pulling new updates as a result. Any other suggestions?

 

[trekkeriii]

A complete reinstall of the WSUS on my Primary Site Server resolved this issue.