New TV cannot connect to broadband

[Whisperscat]

I have a different TV and I have lost my Internet connection. I have been to settings, network but have no option to connect it again. It says connection to broadband fail, connection to on demand fail.

Any advice please

[Mark39]

Turn both your Sky box and your broadband router off at the plug. Wait 30 seconds before turning your router back on and another 4 minutes before turning your Sky box on. Then see if it connects.