No internet connection with my television

[Mollymoo259]

I can't get an internet connection from my router to my Sky Q box. We have went through the steps listed on the Network set up option but still no joy. It has been like this for 2 days. Can't access the On Demand facility or the Apps 

Any suggestions would be greatly appreciated 

[Chodley]

Which broadband provider and if sky, which router have you got?