Im currently using a duo 2 on openvix latest image relfashed twice so shouldn't be that. I've had this problem since moving into this house and I'm no longer using my motorized dish. Just got a sly dish up fitted by there enginee.
I have tried the following to rule it out.
First tried each cable in each tuner to rule out a faulty cable or tuner both worked great no problems at all.
Tried having tuner a setup in simple and advanced why using 2nd cable of motorized dish and equal to a.
I've also done it the other way around using tuner b as the main.
I have also tried setting each tuner on simple and advance but still the same.
It doesn't sound likely but I feel I've tried everything else could slys lnb have software in it to stop you doing it on a foreign box.
Thanks in advance for any help