Disabling DHCP for a Connection in Windows
If you’re running a typical home network, then your devices receive their IP addresses via the Dynamic Host Configuration Protocol (DHCP). This means they’re assigned an IP address when they connect to the network, and may in fact receive a completely different one the next time.
Whether or not your device will use DHCP or not is a setting unique to each connection. In other words, if you turn off DHCP for your wired connection, all your wireless connections will continue to use DHCP until you do the same.
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