But after a week boot the box after power permanently.
I will send the first device back now and give the second ordered just one more chance.
Otherwise, I can only add my voice to previous speakers regarding the failures. Update follows once the second unit for more than a week was in operation ...
Update: Call the dealer revealed that the manufacturer had a buggy hardware series. This should have been, according to traders now exchanged. In addition, I have the manufacturer a written mail with a request for statement for hardware / software failures of series and as you can see the buggy series.