BT Https certificate and Window 11

I am using Window 11 version 23H2.I have FFTP broadband supplied by BT, due to not having a static IP address I have been using Free Dynamic DNS - Managed DNS - Managed Email - Domain Registration - No-IP to allow me to connect and view my IP webcam. When I use an open port checker Open Port Check Tool - Test Port Forwarding on Your Router this confirms that the port concerned is open. This allowed me to view my webcam via the internet from anywhere, this worked OK until recently. When I now use the noip link, I end up at my BT router home page and do not now connect to my webcam:





I can connect and view my webcam using my mobile but not by using any Windows PC’s. I believe that the issue is caused by the BT Certificate which prevents windows allowing me to view my webcam.





Any help to resolve this problem would be appreciated.



Many thanks.