How can I copy a PSK from one WLAN Controller to another

[tdennehy]

I'm trying to replace a WLAN controller with a new one.  One WLAN is configured with WPA-PSK.  Nobody seems to know the key that was used.

Anyone know if there is a way to extract the encrypted key out of a controller and put it into the new WLAN Controller?

Thanks in advance.

[George Stefanick]

No can do ...

https://supportforums.cisco.com/discussion/11364566/view-psks-wlans-wlc 

However, if any users are on a MAC Book and has iCloud enabled you can see the key under the "keys". If you have a windows 7 box and uses the native supplicant you can expose the key on the supplicant ..

[tdennehy]

This just happens to be a Vocera badge WLAN.  No clients other than badges...

[George Stefanick]

If vocera can get to the hash in the vocera server you might be able to get the key. We had this problem. We ended up setting up a new WLAN and doing a push to the badge and moved them to the new WLAN with a new key .. 

[tdennehy]

Got that hash.

That sounds extremely painful - setting up new WLAN, etc.

[George Stefanick · Accepted solution]

Na... The WLAN move was pretty easy ..

I would open a ticket with vocera about this issue and tell them about the hash .. They should be able to do it ..