WSUS Server update problems

[Homerboy]

I normally have my WSUS server set to auto-update nightly
However, lately its failing and reporting the following error:

WebException: The underlying connection was closed: Unable to connect to the remote server. ---> System.Net.WebException: The remote server returned an error: (407) Proxy Authentication Required.
at System.Net.HttpWebRequest.CheckFinalStatus()
at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult)
at System.Net.HttpWebRequest.GetRequestStream()
at System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String methodName, Object[] parameters)
at Microsoft.UpdateServices.ServerSyncWebServices.ServerSync.ServerSyncProxy.GetAuthConfig()
at Microsoft.UpdateServices.ServerSync.ServerSyncLib.InternetGetServerAuthConfig(S
rverSyncProxy proxy, WebServiceCommunicationHelper webServiceHelper)
at Microsoft.UpdateServices.ServerSync.ServerSyncLib.InternetGetServerAuthConfig(S
rverSyncProxyMicrosoft.UpdateServices.ServerSync.ServerSyncLib.Authenticate(AuthorizationMan
ger authorizationManager, Boolean checkExpiration, ServerSyncProxy proxy, Cookie cookie, WebServiceCommunicationHelper webServiceHelper)
at Microsoft.UpdateServices.ServerSync.CatalogSyncAgentCore.InternalGetConfig()
at Microsoft.UpdateServices.ServerSync.ServerSyncLib.InternetGetServerAuthConfig(S
rverSyncProxyMicrosoft.UpdateServices.ServerSync.ServerSyncLib.Authenticate(AuthorizationMan
gerMicrosoft.UpdateServices.ServerSync.CatalogSyncAgentCore.CatalogSyncThreadProce
sReal(Boolean allowRedirect)


This server should not be going through our HTTP proxy server at all. The only other "proxy" on the network is a Cisco PIX firewall that doubles as the DHCP server... I'm at a loss.

 

[spyordie007]

Have you verified the proxy configuration in the WSUS server? It sounds like it is trying to connect to the proxy and cant do the updates because the proxy requires authentication (which it shouldnt be doing).

 

[Homerboy]

the proxy config in the settings for the WSUS is off (unchecked) Just for S&Gs I tested it going through the server and its the same crap. 🙁

 

[spyordie007]

That's really strange.

So to see if it made a difference you already specified a proxy server and than changed it back to none? Have you tried restarting the service after that to see if that makes a difference?

I believe that "(407) Proxy Authentication Required" message/error is getting returned from a proxy server (not the WSUS server) so the question is why isn?t WSUS paying attention to its configuration...

Were you using a proxy server for it in the past; or change the dialog to try a proxy server at one point? I find it very unlikely that the WSUS server would arbitrarily decide to use a proxy and just happen to pick a legitimate proxy server address to try 😉

-Erik

 

[Homerboy]

Ive tried pretty much everything I can think of... Im downloading the WSUS install .exe right now and doing a reinstall on it.
I didn't specify a proxy in the config UNTIL it started having this problem. The only thing on the machine that is using a proxy is likley some users' IE profiles.