Not able to store Wi-Fi network passwords in keychain A few years back I gave my laptop in to fix a charging problem, and though that was resolved pretty easily, when I got it back I seemed to be having problems with logging on to Wi-Fi. What happens is, the Wi-Fi network that was already saved before the reparation does not connect automatically, I have to click on the Wi-Fi icon and choose the network to connect, and it will connect, but it will say a keychain could not be found to store -network. So that's ok, but the really annoying thing is that with any new network I have to manually select it and then type in the password every time, and it will connect but still give me the same message. 

I am using a mid 2012 MacBook Pro running OS X Yosemite 10.10.5.
Keychain First Aid may solve your problem. It has been removed in later Mac OS versions (starting with 10.11 El Capitan), but it should still be available for 10.10 Yosemite.


Launch the Keychain Access app, located in Applications > Utilities
From the Keychain app, go to the Keychain Access menu in the top-left and then select Keychain First Aid. 
From the Keychain First Aid window, select Repair and click Start