Error code 0×80190191 while Windows Updates in Windows Server 2003

If you’re new here, you may want to subscribe to Windows Reference RSS feed Thanks for visiting!When running Windows Update in Windows Server 2003, Windows Update may fail with the error code 0×80190191. This could be caused by the winHTTP Web Proxy Auto Discovery Service.
WinHTTP implements the client HTTP stack and provides developers with a [...]

Enable/Disable Path MTU Discovery in Windows 2008/2003/Vista/XP/2000

Path maximum transmission unit (PMTU) discovery is the process of discovering the maximum size of packet that can be sent across the network between two hosts without fragmentation (that is, without the packet being broken into multiple frames during transmission). By discovering the path MTU (PMTU) and limiting TCP segments to this size, TCP can [...]