I tried multiple versions of OpenVPN including the new version 3 and all the way back to 2.4.1. Nothing worked. Version 3 fails stating that it can't import the config file from the router as it doesn't support TAP. UDP seems to be working fine through my DDNS. I I port forwarded the TAP and TUN ports. Nothing seems to work. The config file from the router appears to be fine. The certificate and key files are there. I spent 8 hour messing with this and tried it on two different PC's. Tested it on both my internal and from external networks and it doesn't want to function. I purchased this router for the VPN. I am about ready to take it back.
