I use a powerline to connect the hub to a switch (and then multiple units connected to the switch) When I connected a NOW TV box, I had loss of BT channels. The cure for me was to replace the old unbranded switch with a Netgear product I had spare
HI, To explain. I have a powerline with one ethernet connector. This connects to a switch. This is a box with multiple ethernet sockets, usually 6+. When I first connected a NOW TV box to the switch, my BT Sport stopped working. I cured this by changing the switch for a branded product (same speed)
I would suggest trying the following
HI mine are Devolo, 200Mb old units, these are similar
Sounds like your BT hub is OK.
Do you have an ethernet switch? or do you mean the BT Hub when you say Ethernet hub?
Do you know how many ports (sockets) the BT Powerline adaptors have?
Do you have
ps I realised the last link was not quite correct, this is the nearest to what I use