I have a client whose users are trying to use OCS audio/video through their OpenVPN connections (they're connecting to an Untangle server). They'll be able to connect and use OCS for a few minutes without a hitch, and then the OpenVPN will disconnect. They connect for a few more minutes, and it happens again. I have not yet been able to collect any logs on the client machines. The server logs show multiple disconnections.
We've already tried adding bypass rules for the VPN IP range.
Any other suggestions?