Sky fibre installed, now network won’t connect

[Michael296]

Sky fibre installed Tues 11th Nov, no land line / dial tone, installer said might reconnect after 48 hrs. It didn't, so called today & was talked thro resetting hub.
Now the main tv with Q won't connect to network & tv with mini box connected says there's a problem finding my sky Q box? 

[JimM1]

@Michael296 Do you have the same sky Broadband Hub that is black in colour pre/post your fibre upgrade? Help link below also should you need it!

sky connecting devices
https://www.sky.com/help/articles/connect-devices-to-broadband-start

[peter-marlow+1966]

Have you  plugged  your  landline  into  the phone  socket  on the hub ?