I have a 2012 Mac Mini.  It keeps rebooting randomly.

I have a Mac Mini, bought May 2012 connected to a Thunderbolt Display.  The screen will freeze, go black, go white , and then reboot.  When it reboots, the camera does not work.  If I reboot manually the camera will work. It does this randomly and recently with more frequency. I'm not sure if this is a Mac Mini problem ora Thunderbolt display problem.
Thanks.

Unplug TBD from wall.  Wait 3 minutes and reconnect and see what happens.

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