We have two AP800s that have been working fine for years. Now one has started to forget its WiFi password. Users get a message similar to "Unable to connect, incorrect password". Power cycling the access point seems to cure the problem for awhile then it happens again.

I think once or twice I've also seen an issue with the wifi switching off. Eg no signal on my scanner and the box on the admin page somehow becomes unchecked. Fixed by checking the box again.

Is this a failing power supply , capacitor or flash memory issue?