Yes that was some time ago, but later I had to reinstall everything again and "accidentally" installed 1.07.601 driver for H7. Try to set card idle state to pause and forcing preferrend network provider to DVBC might have some effect on this too.
I have 1.12 on server and clients. You can see my system specs here. They should be up to date now.Thanks will try. What version of TV server are you using. I have 1.12 installed as TV server only setup.