Log into your No-IP account and refresh the host name.
If you intend to keep using No-IP, its best to use the paid version, then there is no need to refresh your host name every 30 days,
So, I now am signed up to IP tracking through No-IP. I still cannot see my cameras.
My setup is
fibremodem < mikrotik router < wifi-mesh. (smart hub removed)
When I try to connect to my cameras (port 8001 which has worked before) on my phone (wifi) turned off to see anywhere I can see packets going through the router but no data sent to the phone - each connection attempt recorded as 2 packets.
Either the request isn't getting though to the camera or the camera isnt sending data.
Camera IP is OK on the LAN , - I can connect and see its view.
Not sure how to further troubleshoot.