No internet

[Aoife101]

we don't have. Internet connection 

all green lights on router 

switched on and off still nothing. 

tv app / catch up etc won't work. 

mobile phones on 4G 

[caesarome]

@Aoife101 

Try running this line test to see if it finds any faults:
https://www.sky.com/help/articles/broadband-diagnostic-start

You can also run the test via the MySky app on a mobile data connection.

After this has finished and if it reports back all is good click on broadband to run an updated test. If you get amber or red please follow the on screen instructions.