Learned the hard way not to install a bunch of apps all at once. The console log from the VPN server acted just if if port 1194 was blocked because nothing appeared as an error on the console and I just couldn't penetrate the firewall. Then as soon as I removed adblock, openvpn server would connect. Just FYI.
Note this is on firmware level 18.06.4 (back-leveled my Buffalo WZR-HP-G300NH2 from 19.07.3 due to lock ups on the wifi with that firmware.