Ahhh. That could explain it indeed. I do have a Wavefrontier T55, and I am trying to connect everything correctly. But something is wrong there as well. My SNR on 3 LNB's is not more then 50%. Thanks for your reply.
I have a wonderful new Dreambox One Ultra Combo version. So it has a combo tuner 1x DVB-S2X and 1x DVB-C/T2. I wonder if this specific tuner has multistream capabilities. I tried every setting for 5W. Regular transponders are no problem at all, but multistream onces just keep getting a message that 0 channels have been found. I looked up all settings on KingOfSat, like stream id, PLS etc. Does some one know if this combo tuner has multistream capabilities? In the about function it says it's the Si2169D.