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A major service outage has occurred on Sky’s fibre-based broadband service, with customers around the UK unable to get online on the morning of Tuesday 2 August.
The fault was disclosed on Sky’s service status page at 7am. The internet service provider (ISP) said: “If you have Sky Fibre or Sky Fibre Unlimited in your home, you may not be able to get online at the moment. We’re investigating the fault now and we’re sorry for any inconvenience caused.”
Service status website Downdetector.co.uk saw a spike in reports beginning in the early hours and peaking between 7 and 9am. Most complaints originated in London, the Midlands and the north of England.
In a second update at 10.30am, Sky said its engineers had resolved the problem and would continue to monitor the service throughout the day to avoid a repeat.
A number of reports have suggested the problem may have been related to a routing issue affecting IPv4 addresses, as websites and servers that use IPv6 addresses are reportedly unaffected. By some margin, Sky is the ISP that has committed most heavily to IPv6 in the UK.
According to web-watcher Akamai’s most recent State of the Internet report, although the UK does not feature in the top tier of countries for IPv6 traffic volumes, Sky is well established as one of the largest global network providers using the new web addressing system, with 12% of its traffic requests made on IPv6.
Sky’s outage comes after rival BT suffered national outages over two consecutive days in July 2016. This was later confirmed to result from two separate problems, one at an Equinix-owned Telecity datacentre and one at a Telehouse facility.
In the first instance, a 20-minute power failure at the Equinix LD8 site caused the outage, and in the second, Telehouse blamed a tripped circuit-breaker. Both facilities are located in London’s Docklands.
Separately, business ISP Entanet said it briefly lost connectivity to all its devices at Telecity’s Hex 8/9 facility – also in Docklands – early in the morning of 2 August. The outage, which was again down to a power failure, affected both directly connected and leased line customers.
Sky had not confirmed the cause of the fault at the time of writing. ...........................................................................................................