Network connection

hi been waiting for powerline adapters to arrive before I posted this,

Had everything working fine a few weeks ago, zgemma was plugged in to a sky on demand wireless box linked to a sky hub over wifi. Moved over to BT and reconnected sky on demand booster to the BT hub all still working well. Then I moved the box downstairs that's where the problems started. I have tried another sky booster, and Ethernet direct from router and now a pair of BT powerline adapters and when I run a network test I get the 3 top boxes ticked but the bottom 2 unconfirmed, I've restarted router and box countless times, I've even sent the box back to the supplier thinking the lan socket was duff.

I unfortunately don't know enough around a router to play with the settings too much but can follow idiots guides. Please help