You set a proxy, visit an IP-check page, and see a different address. Then you open the computer's Wi-Fi details and find the same old address. Nothing has to be broken.

Your device's local address
Identifies it on the network you joined.
Your router's outward address
Belongs to the ordinary connection leaving that network.
The proxy's exit address
Is used on the connection the destination receives through the proxy path.

A browser proxy setting does not ask your Wi-Fi router to renumber the computer. Nor does it necessarily request another address from your internet provider. The browser connects to an intermediary, which makes the later destination connection.

That is why an IP-check website is useful evidence for that browser request, while the Wi-Fi settings remain useful evidence for the local network. An application that does not use the proxy can still leave through the ordinary router path.

State which address you need to change before editing network settings. If the goal is the website-facing exit, choose an endpoint compatible with the application, with public candidates in the free proxy list. Changing a local static address usually tackles a different problem and can interrupt an otherwise working connection.

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