WSUS Client failing to connect

[penfold]

I have a specific client that I cannot get to connect to WSUS Server. If I go to the http://WSUSServer:Port/selfupdate/wuident.cab I can get the prompt to download the file so I know connection is OK. But if I run an update now I get an error message 0x80244022. Quick google shows that this is caused by application pool stopping on WSUS, but there is no issue on the server. If I look at the logs on the WSUS server I only see connection for the time I manually check the connection in a web browser. I see no connection attempts when I try to do a windows update. The client has been software distribution folder has been renamed and the client has had a reset performed, but I still can't connect to the Server.

 

To me it looks like the client is using a proxy and there could be an issue there, but I am not sure why this would happen if I can get the prompt to download the file. Any suggestions?

[jthompson]

Have you tried flushing the DNS cache on the client? That error code suggests the client encounters some kind of network problem, and flushing DNS is usually a good place to start.

[penfold]

OK, I narrowed this down to some Proxy issue I think. If I enable the proxy settings in IE and exclude address with the WSUS server it allows me to download. However, the Windows update still looks like it is going through a proxy. I'm checking the registry for proxy configuration but I can't see which setting I need to change. In some places Proxy is enabled and others it is not. I'm trying to find out now if a proxy is supposed to be used and if not I'll remove disable all the settings I find. But I think this may be a cached entry from the past