I'm struggling with setting up a stable DDNS onnection.
Setting up the DDNS service for ddnss.de and/or NOIP.COM works fine so far. The updates of the public IP seems to work.
As long I do have an open admin connection to the local management interface in a browser on any computer (via 192.168.1.1), I can reach it over the DNS name (e.g. "example.ddns.net") from "outside" (checked via a different device/browser on a different network, so it's ensured, that access from internet to my domain name is working).
After closing the local local browser connection to the admin page, I can't access the router via "example.ddns.net" any more.
I already removed/added DDNS service via package manager without any change in behavior.
Any Ideas what I'm doing wrong?