BT recovers after night of major outage

Wednesday, January 4th 2017

The major ISP, BT Broadband, was struck last night by a problem with its DNS, causing a major outage. Recovering today, BT Broadband customers seem to have got back their service normally after another sporadic problem with it's Domain Name Servers (DNS) that affected mostly Ipv4 connections.


The popular ISP seemed to have got the problem at around 8:30pm and midnight, with many customers unable to get online. Angry customers took to social media, including Twitter, to complain about problems in loading websites and difficulty in accessing online services. Users complaining of issues in accessing online services were from Shropshire, Birmingham, Blackburn and London.


The DNS component is used to convert IP addresses into humanly readable domain names and also back to numerics. However various issues like admin errors, or bad peering/routing, can cause disruption, with related problems like slowing down access and loading, or showing high latency, or failing to load completely.


BT may not be the only ISP to have such difficulties, as Virgin Meida too recently faced an outage in London that looked serious, but the problem have since been fixed. Some ISPs like Virgin and BT appear to be more affected and probably owing to high number of subscribers, the problem gets noticed better. Never the less, other major ISPs seem to be less prone to such issues. Some BT customers are still reporting similar issues, but may not exactly relate the outage last night.


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