Docomo's 5G service suffers communication failure again on the 5th of this month, cause is under investigation

On the 11th, NTT DoCoMo announced that its ``5G SA'' service, which communicates using 5G-dedicated equipment, is experiencing problems nationwide that are making it difficult to make voice calls, data communications, and short messages. It started happening after 10:30am. Emergency calls are not affected, and the cause is being investigated.

According to DoCoMo, the problem is not due to unauthorized access or a cyber attack, but there is no outlook for recovery.

On the 5th, Docomo also reported an issue that made it difficult to use voice calls, data communications, and short messages using the same service, which uses dedicated 5G equipment. At this time, an abnormality occurred in some communication equipment due to network maintenance work. The cause was said to be a delay in data processing. It said there was no evidence of unauthorized access.

At that time, the situation was restored in about 14 hours, but up to about 1.58 million people were affected. At a press conference on the 6th, Docomo announced that it would complete measures to deal with the communications failure within a week.