This Forum Beta is ONLY for registered owners of D-Link products in the USA for which we have created boards at this time.
Using HTTP or RTSP? Using default ports or custom? If you are using the default, change to a custom and port forward it in the router. Some ISPs may block or filter RTSP traffic so use a port between 1024 to 65535. How are you testing it? Are you using 3rd party software/app or just a web browser?
Hmm well verify the WAN IP is set in the app but I do not think you can change the port in the app. In the router you will need to port forward public port 80 to local port 1223. Actually I believe in the app for the address enter the public IP plus :1223 (ie. 1.2.3.4:1223) then just port forward using 1223 as the public and private ports.Is he only using the Spectrum router or is there another router?