pebbleridge
Newbie
Many thanks for your explanation.It is a weird and quirky issue with some LNBs that I have seen over time. They work fine with one device, as soon as you have two devices sending commands to it, they exhibit the issue you just witnessed. The wideband section does not do the switching, so we can take that out of the equation.
I very much doubt your new cabling is at fault.
I appreciate that it is awkward to get to, but you could try and swap the port that the Freesat box is plugged into. If that port on LNB is faulty, you should be able to work with three working ones. The mutant will be fine with one signal wire. Just make sure tuner config for each tuner matches what is physically attached to it.
Getting to the dish is tricky, but could I perform the same experiment at the box end? If powering the Humax Freesat box off solved the problem on the Mutant, could I disconnect the cables from the Humax, one at a time to determine the port which is causing the issues?
I just had another thought The only issue that I am noticing from the faulty LNB is the loss of EPG data on the Sky bouquet (obviously there are other channels missing, but I've not been inconvenienced by that yet.)
May be I could swap the two Mutant Cables with the two Humax Cables, I assume the Humax would still be able to access it's Freesat EPG and the Mutant might be able to access the Sky EPG.
What do you think?