After spending over 16 hours trying to get openVPN to work (including a call to level 2 support, which gave inaccurate, unhelpful information), I finally found the answer here -> https://www.dslreports.com/forum/r30964836-Networking-FIOS-Quantum-Gateway-router-G1100-issue-with-L2TP-port-forwarding
Normally, you should be able to port forward like this source port = 1194, destination port = 1194. Because of the firmware bug in the FIOS Gateway FIOS-G1100, you have to make the source port = "Any"
Obviously, this is a security concern because it is less restrictive than setting the port to 1194.
In conclusion
Anyone who is trying to port forward for openVPN:
- set the source port to "Any"
- set the destination port to 1194 (or a another port, if you have configured openVPN to use another port)
Here is an example configuration
