In this case, you should be able to resolve the issue by updating or reinstalling the WAN Miniport (PPTP). What might happen is the Miniport PPTP adapter is not disconnecting from the VPN connection when the action is completed by the user.
Corrupted WAN Miniport (PPTP) – It’s also possible that the issue is being caused by a Miniport PPTP adapter issues.Several affected users have reported that they managed to resolve this issue by disabling and re-enabling the connections via the Network Connections tab. Glitched VPN Network connection – If you’re in the habit of disconnecting your built-in VPN network regularly, you run the risk of glitching the VPN Network connection that is being used.If this scenario is applicable, you should be able to avoid the restart by connecting via the Settings App VPN menu. Tray-bar VPN menu bug – Windows 10 seems to have a weird recurring but that sometimes breaks the VPN functionality, but only from the tray-bar icon.
In this case, you should be able to resolve the issue by doing a complete TCP/IP reset via an elevated Command Prompt. This is typically common with ISPs that offer dynamic IPs.