Can't log in through DDNS

I can’t log in http://gr0b88e.gl-inet.com/

I always get “Input is wrong”, although I wrote my Serial & password correctly, I checked it many times, tried it many times

also gateway shows that port 83 is opened & DDNS is accessible

please help

Hi, there is a bug introduced recently. Will fix asap.

You can login the UI from LAN and disable this sn verify from “access” page.