Hidden Nerwork

[Dippu]

This will explain what the hidden networks are: 

https://community.bt.com/t5/Home-setup-Wi-Fi-network/Smart-Hub-2-Firmware-glitch-and-sneaky-networks...

[Jass]

Thanks liquorice, Keith and Dippu  for wise words regarding this being a backhaul channel.

Should it still be there even though I have no discs?

Jass.