Even if you’re paying for 24/7 server access (without needing to book server time), please LOG OFF OPENVPN WHEN YOU’RE NOT USING IT (on the mobile phones). Otherwise you’re wasting server resources. The OpenVPN license only allows a specific amount of users at one time, which I manage for booked servers. But anyway I’ve upgraded the OpenVPN license to double maximum simultaneous users. I shouldn’t need to upgrade it further provided everyone remembers to log off OpenVPN when they’re not using it.