My system is
Windows 10 Pro
The problem I am encountering now is: I connect to the VPN server, the protocol is l2tp, and I can dial up successfully. However, when I access resources in the server, transfer files or open server videos online, the VPN disconnects from time to time, and the dial-up works again. After dialing it up, the connection will be disconnected from time to time. There is no problem on the server side. The problem of the server has been ruled out and access to other devices is normal.