Asus RT-AX1800U User Manual page 77

Check if your network settings are correct.
• Each client on the network should have a valid IP address. ASUS
recommends that you use the wireless router's DHCP server to
assign IP addresses to computers on your network.
• Some cable modem service providers require you to use
the MAC address of the computer initially registered on
the account. You can view the MAC address in the web GUI,
Network Map > Clients page, and hover the mouse pointer
over your device in Client Status.
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