Now press the WPS button on the router. Holding down this button on the router for 30 seconds will connect your phone to the WiFi network.
After that your phone will automatically connect to this router every time.
Guest mode without password on router -
Guest networks can be created on some routers. You can temporarily enable this option to give the guest WiFi access.
Type 192.168.0.1 or 192.168.1.1 in the address bar of your computer's browser.
Log in with username and password. If you do not know the password, try "Admin".
Once logged in, select Guest Network from WiFi Settings and Enable it.
Enter the name of the guest network. Leave the safety field blank.
Login WIFi with QR code-
WiFi login via QR code is relatively complex. It is possible to log in easily by typing the password. Take a look at how to scan a QR code and log in to a WiFi network.
How to do it from laptop Or PC -
Open the qrstuff.com website on the laptop.
Select the Wifi Login option on the left side here.
Now enter the SSID and password of the network.
The QR code will then appear at the top of the display. Scan this QR code from the smartphone.
After scanning, select Connect to this network.
See Full Reading Post:https://www.ahasantech.com/2021/06/connect-to-wifi-without-password.html
