At&t, Verizon, U verse, Comcast, Xfinity changed my modem/router now my DVR remote view not working
When all this ISP companies change your router/modem most of the time all setting done by your camera guy are gone. Most of the time you are on your own to fix this or someone wants a fee to do this for you.
It can be fixed by you, if you follow this simple instructions.
log in to the setup menu of your DVR
Go to network setting
Find the ip address of the DVR
Log in to the modem/router setting
Look for firewall setting
Do port forwarding for the IP address of the DVR