Recently I have been in the UK, in a company where many users are connecting to my company server data via VPN and they have told me, that they have problems with OpenVPN client running on Windows 10.
The second problem was that after one hour the connection was closing down. Solution for that was easy. I had to only add those two lines
keepalive 10 60
to openvpn config file – and that’s it. After one hour the connection was still up and runnig !