Manage Your Network
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N300 WiFi Cable Modem Router Model C3000
2. Type your modem router’s WAN IP address into your browser’s address or location field
followed by a colon (:) and the custom port number.
For example, if your external address is 134.177.0.123 and you use port number 8080,
enter http://134.177.0.123:8080 in your browser.