You either change the admin port of the router, or you change the port of your camera and the related port forwarding rule on the router.
And no, DynDNS does never connect to anything. DNS is the phone book of the internet, not the phone lines.
Thank you. The router has all the port forward rules correct and the camera is connected to the correct ip. I won’t be able to physically check it until September. I only have remote access right now. Very frustrating