Hey all I have an issue with Ethernet cables that have been installed. I have had cat 6 ethernet cables run from box room at first floor into loft and down chimney stack to feed TV, consoles etc. I have used an Ethernet cable tester and all appears to be well. These are straight through cables. However, neither my TV or Wii U will connect to the internet through the cables. Now the router is connected to my pc upstairs via homeplugs and works fin, so there is no issue with the internet. Does anyone have any idea why the internet is not working in my lounge?