I have a Polaroid Series 3 smart TV and recently it stopped connecting to my wife for some reason, I can still see the option to connect to my router but when I enter my WiFi key it says "connecting" for about 30 seconds then doesn't connect... At first I thought it was The TV so took it back to the shop as it was still within the warranty, the shop gave me a new one but the same problem is happening with this one so I am wondering if my router may be blocking it somehow? I have a BT home hub 3, any advice would be greatly appreciated. Just to confirm the TV used to work with the exact same home hub and as far as I'm aware I have not changed any settings etc on the router. Thanks.