wan port

The WAN port is a key connection point on a router used to link to an external network, such as an internet modem. In home networking setups, the WAN port is typically not used when configuring a second router as an access point or network extender. For example, when connecting a secondary router via Ethernet to extend Wi-Fi coverage, the cable should be plugged into a LAN port on both routers, leaving the WAN port empty. This configuration, often combined with disabling DHCP and setting a static IP, creates a unified network. Issues like IP conflicts or connectivity problems can arise if the WAN port is incorrectly used or if router settings are misconfigured.