I believe there is a compatibility issue with the latest version of Ububtu 15.10, as you said in your thread with version 14.04 the NUC works properly.
The problem is happening while you are turning it off.
Update the BIOS version; use version 0350. Then get into the BIOS, from Power tab disable “USB S4/S5 Power”
Bear in mind there are no drivers for Linux provided by Intel.
Hi Mike C,
thanks for your answer. Actually, i already had the new BIOS Version on when i didn´t work.
When i tried to reinstall the old OS (14.04) it failed, because the ports were not available any longer. So i had either keyboard or USB-Stick, neither this nor that alone helped to succeed.
Maybe to disable the USB S4/S5 Power could/would have helped, but as i have your input now, i can´t try it anymore, because....
in the end, i gave back my first NUC, received a new one, and now i stay with 14.04.3 and everything works just as i wanted to have it. Like the saying : newer change a winnig team or a running system