Log in to the router, if you haven't already done so.
Click Advanced > Remote Management.
Select Turn Remote Management On.
Decide whether to give router access to one computer, or several computers in a range of IPs. (You probably shouldn't give access to everyone, unless you have a dial-up connection and a dynamic IP.)
If giving access to only one computer, select Only This Computer, and type the computer's IP.
If, instead, you want access to a range of IPs select IP Address Range and type the beginning and the end of the range in the From and To boxes. In this example, the starting IP is 126.96.36.199, and the ending IP is 188.8.131.52.
Leave Port Number at the 8080, unless behind a corporate firewall that blocks some ports. Ports that are not typically blocked are for HTTP and HTTPS outbound traffic, port numbers 80 and 443.
Write down the IP shown in the Remote Management Address box. This is the address, followed by the port number, that gives remote access to the router. E.g., in this example http://184.108.40.206:8080.
Accessing your router from the Internet, type your router's WAN IP into the browser, followed by a colon (:) and the
port number. E.g, if your external IP is 220.127.116.11 and you use port 8080, enter http://18.104.22.168:8080.