Hello,
Thank you for provided information. We tried to replicate this issue on our side, but every time we enable OpenVPN client on TRB245 while using .ovpn configuration file, device successfully connects to OpenVPN server.
Regarding logs, try connecting via SSH to a device and run logread -f there you should see OpenVPN logs. Furthermore, it seems that issue could be that OpenVPN does not start after you enabling it. Try this:
1. Make sure OpenVPN connection is working.
2. Disable the OpenVPN configuration.
3. Enable OpenVPN configuration.
4. See if it connects, if not - connect to the device via SSH and use the following command: /etc/init.d/openvpn restart and see if this helps.
Also, please PM me a troubleshoot file (System -> Administration -> Troubleshoot) when issue persist.
Best regards,