How to Test an NTP Server. In order for a server in your business to sync its time with that of a client computer, it needs to use what is known as Network Time Protocol (NTP).

To fix VPN Connection Error 628, The connection was terminated by the remote computer before it could be completed, allow the required Protocols and see.

Windows 10 users and administrators report problems making L2TP VPN connections after installing the recent Windows 10 KB5009543 and Windows 11 KB5009566 cumulative updates.

Check the settings of the client computer to make sure that the computer is configured to use the Point-to-Point Protocol (PPP).