How to check Powerline Adapters or BT Mini Connectors are working: When your Powerline Adapters are connected to your BT TV box the Ethernet light should light up. When you're using the service the Ethernet light will flash. You may notice that the Status or Data Light on one or both Powerline Adapters changes to red or orange. This isn't something to worry about if your BT TV service is working OK.
Do you have any issues with your connection or is everything working ok?