well i port forward to say 8080 in router and change the http port in dvr to same, but i then loose connection unless i use my local ip and end with :8080 so xxx.xxx.xxx:8080 but that is no good for Noip url i have, can't figure why i cant access with changing port, i can access like this xxxx.ddns.net:8080 but how can i do it without adding the port number to the url