Im new at leaserig. So please dont be too angry 
I dont know what the problem was. In average it works with 2,17MH (CGWatcher) and the site says "Average hashing speed for past 92 minutes: 2.25 MH/s"
So it was just a little spike i think. And still over the hash what I offered

I will watch to this and when it comes more, im gonna modify the renting time.