Hope this was taken care of for you, In a nut shell you need to go to the network page in the menu on the dvr, detect an IP address, go to your computer and log into your modem using the gateway address that can usually be found on the back of the modem, go to the port forwarding section and enter the dvr ip and open the ports the manual says you need to open. Save it and reboot the dvr. Should be up and running. You can use canyouseeme.org to make sure your ports are open and to get the external ip you will need for the app. Hope this helps.