I have two Xtrend STB, and I've never had any problem using remotes, they never interfere each other........ except in one case.
If I have any STB in deep standby mode, it wakes up by pressing the power button on both remotes, not just pressingf own one.
I have tried using the DVB Options plugin to listen to own ET9000 and ET8000/10000 remotes in each STB, but it doesn't work in deep standby mode.
It does the same behaviour.
Is there any option to avoid waking up the deep sleeping receiver ?