Intermittent connection: pfsense and openvpn

[jkoblad]

I have a vendor that connects to our network using openvpn, going through a pfsense firewall. It had been working fine until a few months ago. Some days he connects fine and does whatever he has to do, and other days it connects and drops. He'll connect again and it drops again. Then in a few days it will be fine.

I don't know if the issue is with pfsense, openvpn (server side), client side, a VLAN issue (we upgraded our network switches and VLAN'd our network earlier in the year, well before this issue started), or if it's the vendor's eqiupment (PLCs).

If anyone could help with troubleshooting advice and narrowing the issue, I would greatly appreciate it.

Thank you