Broadcast to non-broadcast SSID change stops laptop connection

We have started to deploy a CAWLAP migrating autonomous to lightweight.  In the configuration, the SSID was broadcast.  Windows PC and mobile devices had no problem connecting. 
Now when we changed it to non-broadcast, windows PC can not access while the mobile devices still can!
The controller (5508) is running 7.2.110.
Any ideas?  Is this bug?

Not a bug... You probably added the SSID to the client when it was broadcasted, so the wireless client is looking for a broadcasted SSID. In windows, you can click connect even if not broadcasted. Or else remove and add the SSID on the clients again. It a client side issue not the wlc.
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