You need to expand on your problem and provide some stats to get help
Sorry but you have just posted wifi. Need more information before anyone can help
not a mind reader and my crystal ball is cloudy at present
Post hub stats. Advanced settings then technical log information
if wifi ok apart from living room then suggest something there that is interfering with the hub wifi
have you split the networks? Tried different wifi channels?
Are you using a video sender, as they use wifi channels? (they send TV picture and sound to another TV)
Perhaps next door are using one?
Its worth trying different wireless channels, to see if you can overcome any interference.