My landline no longer works after superfast Sky broadband installed. Phone says 'check phone line'

[Mandy57]

I recently had superfast braodband installed by OpenReach but my landline no longer works. Phone says 'check phone line'. Any help welcome. 

Also so-called superfast broadband is not as good as previous broadband. Connection weak at times, especially at top of house.

[Highlinder]

@Mandy57  Is your phone supposed to now be plugged into the router rather than the wall socket?

[caesarome]

Have you plugged your phone into the back of your broadband hub assuming it has a landline connection.

[Mandy57]

Thank you. It is connected to the router. 

[Urbs1]

I have same problem however I don't get a message. Just no dialling tone. Can't make or receive calls since fiver installed. And my phone is plugged into router.