I found a peculiar problem while I was setting up an openvpn link the other day. The goal was a simple shared key setup and I started with the sample configuration and modified it a bit to fit the circumstances, I allowed the correct UDP port through the firewall (I think 1194 if I recall correctly) and … it didn’t work. So…. I started over and worked from empty config files and put in the bare minimums… it still didn’t work – no appearance that it was making the connection at all to negotiate the link. I double and triple checked the firewall config/restarted it… nothing Then I decided to try TCP instead of a UDP port. Changed the firewall config to allow the TCP traffic on 1194, adjusted the server and client config and lo and behold it worked. The firewall in question….