Have you ever had it working and it quit working recently or is this your first attempt? Are you setting it up as a server or client for some other VPN service? One of the articles you sight is from 2012 and isn't of much help, I know I tried using that one as a road map setting up mine. I probably used the other reference you sighted because I used a lot of references and it took me months to get a good enough understanding to get mine working without errors but there is no single reference that seems to work following them step by step. Lots of folks here helped me out, state what you're trying to do, post your profiles (i.e. client and server profiles) and ask for help with your specific situation, I'm sure folks will pop in with suggestions/help. Also, if you are trying to set up OpenVPN server do you have a DDNS service for the DDNS or do you have a static IP that doesn't change?
Good luck. _________________ Linksys WRT3200ACM
Currently using Linksys Firmware until DDWRT lets my ObiTalk 202 complete calls when connected via WiFi
Last used DD-WRT Version: r38326
OpenVPN server