My pluto has some custom firmware on it, it was preloaded by the seller, It is by some French Station for DATV I think ??
Pre loaded by the seller - so this is a second hand unit with unknown history?
So we probably now know why it doesn't work reliably. You have not correctly configured it via the web interface. When you access the web interface what do you get? please post the whole page. There should be a force compliant check box checked. It seems irrelevant but it's not.