With O2 United Kingdom and Softbank customers being thrown back to the 90s after a network outage, reports have emerged suggest Ericsson was the root cause. "We work hard to ensure that our customers can limit the impact and restore their services as soon as possible", Borje Ekholm, president and CEO of Ericsson, said.
The technical problem left millions of workers without access to emails and news on their morning commute and enraged those who wanted to access social media.
The Sky Help team, responding to customer concerns on Twitter, say the problem has been pinpointed and staff are working with O2 to resolve the situation. "We'd encourage our customers to use Wifi wherever they can, and we apologise for the inconvenience caused".
"At 1.39pm on Thursday, December 6, 2018, the SoftBank Network Center detected software's malfunction in all of the packet switching machines manufactured by Ericsson, which are installed at the Tokyo Center and the Osaka Center, covering our mobile customers nationwide", SoftBank said.
The network blamed a software issue from a third party supplier, issuing a statement confirming their service was down.
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The Japanese company, which plans to list its domestic unit in a $21 billion IPO later this month, said the problem was resolved after four and a half hours by reverting to an older version of Ericsson's software.
"An initial root cause analysis indicates that the main issue was an expired certificate in the software versions installed with these customers", Ericsson said.
Voice calls are working OK.
According to Ofcom: "Depending on the circumstances, it may be appropriate for your provider to offer you some money back while repairs are being carried out".
In cases where you have been without service for some time, you may also have the right to leave the contract without penalty.