Let’s take a look at a typical scenario where you can encounter this anomaly. When you try to enter a password for a wireless network on Windows 10, it might not be accepted if the following is true:
You are using a keyboard with a non-QWERTY layout, such as AZERTY (French), QWERTZ (German/Switzerland), Cyrillic, and/or Latin American.Entering the wi-fi password is the first thing you did after signing in to Windows 10.
Read: How to add or remove Keyboard layout in Windows 10.
WiFi password not working on a non-QWERTY keyboard
In this situation, as described above, the wi-fi password input is in the QWERTY keyboard layout, even though you are using a non-QWERTY keyboard. In which case, the WIFI password is not accepted and therefore won’t work. To resolve this issue or better still work around it, do the following:
Press Windows key + R to invoke the Run dialog.In the Run dialog box, type notepad and hit Enter to open Notepad.In the text editor, type the password there.Then, copy the password from Notepad, paste it into the wi-fi password field, and hit Enter.
Windows 10 should now be able to accept the password without issues. In the future, type in an app before typing the wi-fi password. This will prevent the issue from coming up. The QWERTY layout is attributed to an American inventor named Christopher Latham Sholes, and it made its debut in its earliest form on July 1, 1874. Hope this helps!