Thanks a lot for the quick reply @adomon. I was too quick to post the question. After just a little digging through I found out that the problem is I’ve used my NordVPN user credentials (email/password login for nordvpn.com), instead of using service credentials. More information is available here: https://support.nordvpn.com/hc/en-us/articles/19685514639633-Changes-to-the-login-process-on-third-party-apps-and-routers. Also, there is a lot of information about this around GL-Inet forum