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O2 service 'back to normal' after network signal problems O2 service 'back to normal' after network signal problems
(about 7 hours later)
Phone provider O2 has said its service is "back to normal" after customers complained of problems with reception in several parts of the UK.Phone provider O2 has said its service is "back to normal" after customers complained of problems with reception in several parts of the UK.
The company has apologised after people in areas including London, Manchester, Bristol, Glasgow and parts of Northern Ireland said they had lost signal.The company has apologised after people in areas including London, Manchester, Bristol, Glasgow and parts of Northern Ireland said they had lost signal.
Business Secretary Sajid Javid was among those expressing frustration on Twitter, asking O2 to "sort it out".Business Secretary Sajid Javid was among those expressing frustration on Twitter, asking O2 to "sort it out".
O2 said an investigation into the cause of the problem had been launched. O2 said network equipment was to blame for the temporary lack of reception.
A spokesman said "some customers experienced some problems accessing our network" and that the service had returned to normal at 23:35 BST on Monday. A spokeswoman said "some customers experienced a problem accessing our network" on Monday evening and apologised to those affected before the service returned to normal at 23:35 BST.
He added: "We apologise for any inconvenience caused to those customers affected and we will now begin a full investigation to identify the root cause." She said: "The problem was caused by some network equipment that was temporarily unable to correctly process mobile phone traffic for some of our customers.
"To be more specific, it was primarily the system that allows overseas customers to roam on to our network.
"The problem also impacted a second piece of equipment that allows calls, texts and data for UK customers to be managed correctly on our network.
"Having identified this, we have now isolated the problem to prevent this from happening again."
Many O2 customers had taken to social media complaining of not being able to send or receive calls and text messages, as well as problems with the 3G internet signal.Many O2 customers had taken to social media complaining of not being able to send or receive calls and text messages, as well as problems with the 3G internet signal.
While the problems were ongoing, it had advised people to reset their device, and visit its support page if problems persisted.While the problems were ongoing, it had advised people to reset their device, and visit its support page if problems persisted.
O2 said it was continuing to monitor the situation and was working with its suppliers to investigate how the signal failure occurred. Some customers lost reception for up to five hours on Monday.
Media and technology analyst Matthew Howett told BBC Breakfast the fact that O2 had advised customers to turn their phones off and on again suggested "a problem with registering with the network".Media and technology analyst Matthew Howett told BBC Breakfast the fact that O2 had advised customers to turn their phones off and on again suggested "a problem with registering with the network".
He said while it was still unclear what had caused the issue, "a piece of software not doing its job properly" could have been to blame.
Are you on the O2 network? How is your service? You can share your experiences by emailing haveyoursay@bbc.co.uk.
If you are available to talk further with a BBC journalist, please include a contact telephone number.