I have trees that block my signal and there’ll be times during the day where the signal gets through and other times it won’t.
There’s a really good website for checking for obstacles:
http://www.dishpointer.com/
If there aren’t any obstacles, is there any pattern to which channels don’t work,i.e. all of them, certain ones and which ones?
What’s changed in the last couple of weeks – quite often there’s a logical explanation – the signal will be borderline and then something local in the environment changes tipping it over.
This may help:
http://myhumax.org/forum/topic/no-signal-during-installation-after-factory-reset