How do I set up a guest Wi-Fi network?

Log into your router or mesh app and look for a guest network setting. Turn it on, give it a separate name, and use a password people cannot guess from the street or the refrigerator magnet.

If your router supports it, keep guest devices isolated from your main network so visitors can get online without seeing your printers, laptops, cameras, or file shares. That is the whole point of the setup.

Once it is live, keep the router firmware updated and change the guest password if it gets shared too widely. It should be convenient for guests and boring for everyone else.