You try to port forward to the CCTV on port 8o with the management console of the router on port 8080. The management port on the router works remotely but the CCTV refuses to.
Change the management port on the router to something other than 8080. We used 5000. Then the port forwarding to port 80 for the CCTV works.
We think this is either a bug in the TP-Link or a bug on the CCTV unit.