Raspberry with OpenELEC doesn’t show live-tv

Hi, new to Kodi,

I’m trying to set my Raspberry Pi 3 with OpenELEC and “HMP-Combo DVB C/T2 Hybrid USB Tuner” to watch and record live-TV.

I used this step-by-step-guide as my guideline http://forum.kodi.tv/showthread.php?tid=…pid2315547

Somehow after completing all the steps in the guide my Kodi wont show any TV-channels under the “TV-menu” -Although I can see all the TV-channels by my browser in TVheadend.

Any thoughts how this could be fixed?