NordVPN on your router, how hard can it be!?

Setting up a VPN connection on your router can have many advantages, be how difficult is it really?
In this video I'll share with you my experience from setting up an ASUS router to connect to NordVPN.
As the ASUS RT-AC51U failed to establish the TLS handshake due to an obsolete version of OpenVPN, 2.3.2, the ASUS RT-AC86U successfully connected having a new version of OpenVPN of at least 2.4 which is needed for NordVPN.