How to stop Network Manager from continually prompting for wireless password

Question

How can I stop NetworkManager from continuously asking for the wireless password when trying to reconnect after the connection is temporarily dropped?

Unlike this post, this happens for me without suspending. My wireless WPA2 connection might drop a couple times, and NetworkManager will automatically reconnect. However, eventually NetworkManager will start prompting for the password, which is already filled in. Clicking Show password confirms it's already the correct password, and clicking Connect without changing anything also successfully connects.

Why is it doing this, and how do I stop it?

Answer 1

May I suggest that you run in a terminal

nm-tool

That will give you a list of wireless access points that are in range, the frequency that they are transmitting on and the signal strength.

Your wireless access point/router could be using the same frequency as another access point and if they are at the same or of similar strength it could explain why your connection is dropping. It may also mean that network manager after failing to connect to your access is now trying to connect to this other one. And that is why it is asking for a password. You have the right password for your access point but not for the access point that network manager is trying to connect to.

You may need to enter your router's set up program and select a different channel or frequency.

Answer 2

Try restarting the network manager:

sudo service network-manager restart