You are trying to download patches of Microsoft/other vendors. However Patch download fails with an error message " Connection Time Out / Bug in Authorization Handling / Connection Refused"
Patch download fails in the following scenarios related with Proxy issues.
Proxy Not Defined or Wrong Password
Wrong Proxy Port
Wrong Proxy Host / Low bandwith / Delay in Downloading Patches
Proxy User Authentication
Applies to: Patch Deployment Failure, Patch Download Failure, checksum Failed
Keywords: Problem while downloading the patch from server, Patch Installation Failure