Open Windows Settings (click Windows Menu, click Settings icon).
But you should be able to connect an Ethernet gateway directly to a PC to receive an IP address and use the PC’s Internet connection using the steps below. It is important to understand that issues regarding this network configuration will be deferred to the party that supports your PC. This can be useful if you do not have a router with DHCP enabled to which you can connect the Ethernet gateway (as the Ethernet gateway operates with DHCP enabled by default).
The most common configuration is sharing a Wi-Fi connection to the Ethernet port. You can share an Internet/network connection from your PC to an Ethernet gateway on a Windows 10 PC if your PC has at least one Ethernet port, and another network adapter (typically Wi-Fi).