Customers on the O2 network and all MVNO (Mobile Virtual Network Operators) that use the networks signal are starting to see things get back to normal after a day with a dead phone.
The issues it seems was with certain nodes in the core network resulting in network disturbances using two specific software versions of the SGSN-MME serving GPRS support node-Mobility Management Entity.
This was not the fault of O2, Tesco Mobile, Giff Gaff networks, they all got lots of grilling on social media, and rightly so! many people lost lots of business during the day, people pay good money to the network and should provide the service they promised.
Börje Ekholm, President and CEO, Ericsson, says: “The faulty software that has caused these issues is being decommissioned and we apologize not only to our customers but also to their customers. We work hard to ensure that our customers can limit the impact and restore their services as soon as possible.”
An initial root cause analysis indicates that the main issue was an expired certificate in the software versions installed with these customers. A complete and comprehensive root cause analysis is still in progress. Our focus is now on solving the immediate issues.
During the course of December 6, most of the affected customers’ network services have been successfully restored. We are working closely with the remaining customers that are still experiencing issues.
You can learn more about network nodes here: https://en.wikipedia.org/wiki/Node_(networking)
To check your O2 service please click here status.o2.co.uk