A spokeswoman for BT said: “Large numbers of customers have been experiencing temporary issues with their broadband services this afternoon. Customers can still receive and make calls as normal.
“We’ve been working hard to fix the issue and are glad to report that nearly every customer affected is now reconnected, approximately two hours after the problem started.
“We apologise to any affected customers for the inconvenience.
“There is no evidence at this stage to suggest that we were subject to a malicious attack.”