Commonly known as a WLR line which hosts your phone service and broadband, There could be an issue on the WLR line which has caused the interruption to the connection. Please check the router is correctly connected with all cables in the correct ports, This could also be down to a DNS error or major outage.
If you do need further help please contact us on support@ice-comms.co.uk with the landline number so that our team can contact you to resolve this issue or call us on 03332025000 option 1 for Customer Services then option 2 for Landline and Broadband and a member of the team will be happy to assist.