The DSS Authentication Web Service is not working.

Downstream server authentication service is not working end to end. This may be because of configuration issues.

Possible resolutions include:

• First, troubleshoot any issues with SQL Server before proceeding.
• Troubleshoot any general issues with IIS.
• Check permissions.
  1. Open a command window.
  2. Type cd <WSUSInstallDir>\WebServices\DssAuthWebService
  3. Type cacls
  4. The following ACEs should be set:
     • NT AUTHORITY\NETWORK SERVICE:(OI)(CI)R
     • BUILTIN\Users:(OI)(CI)R
     • NT AUTHORITY\Authenticated Users:(OI)(CI)R
     • BUILTIN\Administrators:(OI)(CI)F
     • NT AUTHORITY\SYSTEM:(OI)(CI)F
• Check the IIS configuration of the reporting Web service using the IIS script adsutil.vbs (or use the IIS Administration UI Tool).

1. Open a command window.
2. Locate the adsutil.vbs tool, which is typically in <InetpubDir>\AdminScripts.
3. Locate WSUS virtual directories on the IIS server: type <InetpubDir>\AdminScripts\adsutil.vbs find path
4. Find the path of the DssAUthWebService (it will look like W3SVC/<WebSiteID>/ROOT/DssAuthWebService).
5. Get the properties of the web service: type <InetpubDir>\AdminScripts\adsutil.vbs enum W3SVC/<WebSiteID>/ROOT/DssAuthWebService
6. Compare the output with typical values below (this is a partial list): KeyType:”IIsWebVirtualDir” AppRoot:”/LM/W3SVC/<WebSiteID>/ROOT/DssAuthWebService” AppFriendlyName:”DssAuthWebService” AppIsolated:2 Path: “<WSUSInstallDir>\WebServices\DssAuthWebService” AccessFlags:513 AccessExecute:False AccessSource:False AccessRead:True AccessWrite:False AccessScript:True AccessNoRemoteExecute:False AccessNoRemoteRead:False AccessNoRemoteWrite:False AccessNoRemoteScript:False AccessNoPhysicalDir:False AspScriptErrorSentToBrowser:False AspEnableParentPaths:False AuthFlags:1 AuthBasic:False AuthAnonymous:True AuthNTLM:False AuthMD5:False AuthPassport:False AppPoolId:WsusPool”
7. Type <InetpubDir>\AdminScripts\adsutil.vbs enum W3SVC/1
8. Compare the output with typical values below  (this is a partial list).

KeyType:”IIsWebServer” ServerState2 ServerComment:”Default Website” ServerSize:1 ServerBindings:”:80:” SecureBindings:”:443:” ConnectionTimeout:180 DefaultDoc:”Default.htm,Default.asp,index.htm,iisstart.htm” AspBufferingOn:False LogPluginClsid:”{FF160663-DE82-11CF-BC0A-00AA006111E0}” Win32Error:0 AppPoolId:”DefaultAppPool”

9. Type <InetpubDir>\AdminScripts\adsutil.vbs enum W3SVC
10. Compare output with typical values below. This is a partial listing. For more information, see “Appendix C: IIS Settings for Web Services” in the WSUS 3.0 Operations Guide at http://go.microsoft.com/fwlink/?LinkId=81072  KeyType:”IIsWebService” MaxConnections:4294967295 AnonymousUserName:”IUSR_<machinename>” AuthFlags:1 AuthBasic:False AuthAnonymous:True AuthNTLM:False AuthMD5:False AuthPassport:False AppPoolId:”DefaultAppPool” IIs5IsolationModeEnabled:False

Verify

Look for the corresponding error event.

1. Open a command window.
2. Type cd <WSUSInstallDir>\Tools
3. Type wsusutil checkhealth
4. Type eventvwr
5. Review the Application log for the most recent events from source Windows Server Update Services a