sky hd missing channels

[Johny48]

hi
my m8 has a sky hd box(thompsons) but it has recently started to loose channels (ch5 movies 24 sky news ) to name a few, he asked me to have a look at it so i checked all connections did a reboot but no joy i had an old spare sky box so connected it up and all is fine.
i thought that if the other box was doing the same then problem solved its the lnb that needs replaced.
im not that clued up on the sat stuff so am i missing something like software updates or something else it gives epg but when you select the channel it says no satellite received thanks for any help on this guys.
cheers johny48

 

[digidude]

if its working fine with a different box, then the problem is his receiver m8

 

[Johny48]

thanks digidude i thought as much will let him know

cheers johny48