Sky broadband back online after morning outage

Fibre customers were knocked offline for two hours this morning

Broadband plugs

Sky has apologised for "making Tuesday harder than it already is" with a nationwide fibre broadband outage this morning. 

Early this morning, Sky customers started to report outages. By 8.30am, the company admitted that Sky Fibre and Sky Fibre Unlimited customers were "having issues browsing" across the country, saying that engineers were looking into the issue. 

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It has since said that fibre customers should be back online. 

Sky has not yet revealed the cause of the fault, but analysts at ThinkBroadband pointed the blame on a routing issue for IPv4 traffic, as IPv6 traffic appeared to still be working. 

"The use of IPv6 versus IPv4 is usually totally transparent to many users and Sky Broadband is biggest provider offering a dual stack configuration for users, to the extent that we see lots of speed tests from Sky users on IPv6," noted Andrew Ferguson on the site. 

"Alas this morning the dual stack nature may be confusing some as there appears to be a routing issue with Sky where IPv4 traffic for fibre (and maybe Sky Q) customers is getting lost but IPv6 traffic is still working," he added. 

While the outage appears widespread, it was quickly rectified - unlike BT's two days of trouble in July

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