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Microsoft Office 365, Azure Cloud, disrupted by service issues

Users trying to sign in to some Microsoft systems failed to connect on Monday.


Alexander Kalka / NurPhoto / Zuma Press

Microsoft Corp.

MSFT 0.78%

on Monday suffered interruptions with its Office 365 software tools in the workplace and its Azure cloud, which disabled some users for hours.

Microsoft said the problems included some users of Outlook e-mail services and Teams workplace collaboration teams, which provide chat and video conferencing functionality and are growing rapidly during the pandemic. Users trying to log in could not connect, although those already logged in were not affected, the company said on its website.

The company initially said it had identified a problem with Office 365 related to a recent software change and restored an earlier version. However, the decision failed to restore normal service, said the company, based in Redmond, Washington. About two hours later, the company said it saw improvements after the introduction of mitigation steps.

Service interruptions such as this are not uncommon. Software vendors sometimes run into problems when they release new versions, which can take hours or more to fix. Alphabet Inc.

Last week, Google crashed some of its tools, including email and cloud word processing.

Users of Microsoft’s Azure, the company’s huge cloud computing system, which many companies rely on to store and analyze data, suffered similar problems Monday as those affecting Office 365.

“We are working to allow service interruptions affecting a subset of clients performing authentication operations,” a company spokesman said.

Microsoft said the problems with Azure started around 5:25 p.m. ET. This has affected both the so-called public cloud clients and the government clients in the cloud. About four hours later, the software giant said users should see services restored.

Write to Aaron Tilly at aaron.tilley@wsj.com

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Appears in print on September 29, 2020 as “Microsoft Office 365, Azure Cloud Disrupt”.

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