We have some instances where our student MacBooks loose the WiFi PSK that is pushed out through a profile. This seems to happen most often after we upgrade the MacBook to 10.11. We have checked the Profiles and the WiFi profile still shows up as being installed, but when we try to connect to the SSID we are prompted for the key. We have is set to not allow MDM removal, so the only thing we have been able to do is manually re-enroll the device.
How can we get a profile to get reapplied to a device, if it is showing that it has that profile?