Well, you could try turning Wifi on in KSM, before selecting to "Start KOReader" and see if that makes a difference. Also, try it after turning the Wifi off in KSM first to be sure it is not on when KOReader starts. Maybe that would provide a hint as to the problem. You can find more recent releases
here.
The answer to NiLuJe's question would be required to track this down, as well.
Luck;
Ken