I have exactly the same problem with the uptime.. 3 of them running on Rpi , each with the USB adapter. Can't have them running for more than 2 days. Quite annoying to come home from work and see them dead every second day , then to heat up the room again and do some spam restart..

By the way. I just noticed on the board , one of the capacitors is not soldered properly , there is one of the small ones soldered instead .. Haven't seen it on the other two. Any idea why ? someone else found that ?

-> http://i.imgur.com/RR7FMZU.jpg