Wi-Fi keeps asking for the password, explained and fixed
The device asks for the Wi-Fi password again and again, either every time it connects or right after you type a password you know is correct. The loop usually means the saved password no longer matches the router, or the saved network profile is corrupted.
The fix, in order
Forget the network and reconnect. In the Wi-Fi settings, remove the network, then select it again and type the password carefully, using the show password option to check each character.
Confirm the current password. If the router password was changed, every device needs the new one. Check it in the router settings or with the person who manages the router.
Restart the router and the device. A stuck authentication state on either side clears with a restart.
Check the router security type. If the router was switched to WPA3 only, older devices may fail to connect and keep asking for the password. Switching the router to WPA2/WPA3 mixed mode or WPA2 usually fixes it.
Update the Wi-Fi driver. On Windows, a driver that fails after an update can cause repeated password prompts. Install the latest driver from the computer maker's site.
Reset network settings as a last step. On Windows, use Network reset. On a phone, use Reset network settings, which clears all saved Wi-Fi networks, so you will need to reconnect to each one.
If a network you have never joined keeps asking for a password, make sure you are connecting to the right network name. A similarly named network nearby could be a stranger's network or a fake hotspot.
If it still happens
If the password works on other devices but this one keeps looping, the saved profile is the likely cause, so forget the network, restart, and reconnect. If the loop happens on every network, the device's Wi-Fi software or adapter is at fault, so update it and test with another network.
Common questions
Why does Wi-Fi ask for the password when I already entered it? The device is probably using a saved password that no longer matches the router, or the saved profile is corrupted. Forgetting the network and entering the password again clears the old saved details.
Can a router ask for the password again after a firmware update? Yes. A firmware update can change the security settings or reset the password, so devices that connected fine before suddenly need the password again.