Tap on it and they can now quickly scan the code. Scroll down to find where it says Add Network next to it, you'll see a QR code icon.
If your guest has an Android phone, on their device head to Settings, Connections (or Network and Internet), then Wi-Fi. You can scan QR codes using the regular camera app with most phones, including iPhones. (You may have to authenticate this action.) Secure Shell provides strong password authentication and public key. With Android devices, you can use a QR code to share Wi-Fi details, provided the phones or tablets in question are running Android 10 or later. Head to the Settings app and tap on Network and Internet. You’ll get a pop up window that’ll list the name of the network and some other. Now to view the actual password, go ahead and double-click on the wireless network of your choice. These should all be categorized as AirPort network password. that you can find beside the Network Name You need to insert the password of your router. To find the passwords for wireless networks, you have to click on System in the top left-hand menu.
Not all Android phones have the same Settings menu, so yours might look different. Mac WiFi Problems is one of the common issues for Mac users.