@huber70
To solve this you need to update (example)
huber70.freemyip.com daily. Preferably just after the IPv4 if your WAN has changed.
To do this do the following on your Pi in the terminal.
1 -
crontab -e
(if there is a choice, choose
1 - nano)
2 - add to the bottom of the file:
5 */4 * * * curl https://freemyip.com/update?token=xx...0.freemyip.com
This runs the browser-command every 4 hours on 5 minutes past the hour. The domain name is renewed every 4 hours, that should be enough if you leave your Pi on for 24 hours a day.
3 -
CTRL-X
Saves the file and closes the editor.
That should do it for now. You do not need to keep your browser open any more.
Please test for 1 to 2 days!