Tvheadend

Hi,

I have a new rpi2 running openelec and a dvb-t usb card.
I tried to install the dvb-t card according to this manual:
https://www.youtube.com/watch?v=halHAigfj4Q

It look like every thing is working great on the tvheadend server:
there is real data under the EPG tab.
All the channels are under Configuration -> Channel / EPG

But when i try to play any channel nothing plays.
I've tried both in openelec and from my PC using VLC.

In VLC, it try to play for some time and then I receive an error:
Your input can't be opened:
VLC is unable to open the MRL 'http://192.168.1.110:9981/stream/service/ff1370a75e35a792223b88c134f76fad'. Check the log for details.

Also in VLC tools -> messages, verbosity=2 I get:
core debug: connection succeeded (socket = 560)
http error: failed to read answer
http debug: switching to HTTP version 1.0
core debug: net: connecting to 192.168.1.110 port 9981
core debug: connection succeeded (socket = 560)
http error: failed to read answer
core debug: net: connecting to 192.168.1.110 port 9981
core debug: connection succeeded (socket = 560)
access_mms error: failed to read answer
core debug: no access modules matched
core error: open of `http://192.168.1.110:9981/stream/service/ff1370a75e35a792223b88c134f76fad' failed
core debug: dead input
core debug: changing item without a request (current 2/3)
core debug: nothing to play
qt4 debug: IM: Deleting the input

I can see the TV if I plug the dvb stick to the PC and play it directly from VLC (so the stick is working).
What can be my problem?

Zohar