I've been using Tunnelblick on my Mac for OpenVPN for about a year now. All of a sudden, this morning, it decided that it was going to take a nasty turn for the worse with no explanation. Here are the symptoms I'm seeing:

• I can connect to the VPN fine, initially.
• After about 2 - 5 minutes of no interruption, the connection suddenly dies.
• I can still see the VPN route using netstat -rn, and Tunnelblick believes it's still connected.
• No VPN traffic can go through and I can't even ping the VPN gateway.
• Eventually, Tunnelblick will catch on that the connection has died (usually about 5 - 10 minutes later) and shoot itself to restart and then the cycle starts over again.

I've tried everything I can think of to figure this one out. I've completely flushed my system by rebooting and removing Tunnelblick and all traces of OpenVPN from my system and re-installing from scratch. No dice, same problem.

I'm at my wits end, because I desperately need to get this fixed as the VPN is required for me to be able to do my job. Any ideas you have would be greatly appreciated.