Windows 10 OpenVPN Server restarts when client connects

[JoelJ]

Hi all,

I am having an issue with an OpenVPN server running on a Windows 10 PC.

Basically, when the OpenVPN client connects the OpenVPN server (Windows 10) restarts.
I've had a look at the Windows Events Viewer and apart from a couple of generic "Critical error" and "Error" entries related to the unexpected restart I only see another entry saying that the DHCP server has denied the lease for the 10.8.0.1 IP address. However, it seems that right afterwards the IP is correctly assigned, so I don't think that is the issue.

I've tried updating OpenVPN to the latest version 2.6.9, but nothing changed.
If I try with the Android client 3.8.x, it connects, the server stays up for a few seconds more compared to the Linux OpenVPN Client (v2.4.9) and then same thing, the server restarts.

Has anyone had the same issue or can provide suggestions on how to proceed?

Thank you,
JJ