Im at a loss what could cause apparently all hosted units to exhibit this problem, whereas nearly none of the shipped units have this.
Datacenter only has to provide:
-  electricity (which could cause all kinds of trouble, but is unlikely to cause extreme low hashrates),
-  internet,  with nearly zero bandwidth, not something that should be difficult to achieve in Sweden, and the webinterfaces seem to work, so thats not likely it either
-  Cooling. That could be a real issue, but these reported hashrates are soo low, I could only believe that to be the cause if its like 40-50C in that datacenter. Im sure they would notice...?

Anyone else have theories? Do these hosted machines run any software that the non hosted machines do not run?

(posted before I read the post above me, but that doesnt shed much light on it either, or does it?)