Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
First Look At The New Mac Pro
Earlier Apple announce the new Mac Pro which they plan to announce later this fall. iMore have had the change to get up close and personal with the redesigned Mac Pro.Apple’s engineers have pulled it out the bag again to fit six Thunderbolt 2 ports, two FireWire 800 ports, audio in and out, HDMI and Ethernet in such a small package.