Windows Server 2012 Standard 64-bit.
When I start the WSUS service this error shows up in Event Viewer:
The WSUS content directory is not accessible. System.Net.WebException: The remote server returned an error: (404) Not Found. at System.Net.HttpWebRequest.GetResponse() at Microsoft.UpdateServices.Internal.HealthMonitoring.HmtWebServices.CheckContentDirWebAccess(EventLoggingType type, HealthEventLogger logger)
The server is able to synchronize with Windows Update and finds lots of patches (Critical and Security), but I can't download any updates, as I get this error in Event Viewer:
Content file download failed. Reason: Value does not fall within the expected range. Source File: /c/msdownload/update/software/crup/2015/03/windows6.2-hypervintegrationservices-x86_8c84de57854d4934770a0ed072fb76673e30eb99.cab Destination File: f:WsusContent\99\8C84DE57854D4934770A0ED072FB76673E30EB99.cab.
Screenshot from the server: