WiFi issues

[MattJ888]

No WiFi. 
PON light constantly flicking and there is not green light on 'internet' on the hub itself! Orange light on 'voice'

can only use data on phones.

and cannot use sky catch up or Netflix or console games due to no internet. 
turned off and removed plug for the hub and white network box few times and still same issue remains. PON light continues to flash 

[caesarome]

@MattJ888 

Try running the line test here to see if any faults are found:
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.

If this is of no help give Sky a call to report it to them.