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On September 17th at roughly ~12:30 pm UTC, Microsoft reported an issue with some users accessing the admin center in Microsoft Teams.
Many confirmed they were experience the issue and reported many of their tenants were experiencing the issue as well.
On August 19th at roughly ~3:30 pm UTC, Microsoft reported an issue with users being unable to join Teams meetings.
Shortly after, they determined that any user attempting to join a Teams meeting hosted in North America could be impacted by the issue. They also reported that they had re-routed traffic to an alternative environment and had seen some recovery.
On July 28th 2020 at ~7:00pm UTC, Microsoft reported an issue with the Microsoft Teams app on iOS devices that was affecting users in both North and South America.
On July 22 at ~6:00 am UTC, Microsoft reported an issue that was causing intermittent failures when attempting to load channels and chats via Microsoft Teams.
On July 8, 2020 at 2:45 pm UTC, Microsoft reported an issue affecting a multitude of users in North America that prevented them from joining Microsoft Teams meetings.
The issue persisted just over an hour until Microsoft finally reported at roughly 4:00 pm UTC that the issue had been resolved.
On June 19th, 2020 at ~7:00am UTC, Microsoft reported that they were investigating an issue where users in Japan and the APAC region were unable to access the Microsoft Teams service through desktop client.
Roughly an hour later at ~8:30 am UTC, Microsoft reported that the issue had been mitigated and that access had been restored through Japan and APAC.
On June 18th, 2020 at ~7:00am UTC, Microsoft reported an issue that was causing problems receiving messages in Microsoft Teams throughout North America.
They soon after reported that they were rerouting service traffic through alternate infrastructure and tentatively started to recover.
On Monday June 15 at ~12:00am UTC, Microsoft reported a Microsoft 365 services outage.
Microsoft 365 status reported that some users may be experiencing issues when attempting to access Microsoft 365 services in the Oceana region and stated that more information could be found in the admin portal.
On June 11th 2020 at ~2:30pm UTC, Microsoft reported that they were investigating an issue with Microsoft Teams.
Several users began confirming the issue throughout Ireland, India, and the UK. While others expressed their frustration with the outage as well as the fact that information was not being updated in the admin center.
On May 6th, 2020 at ~11:30pm UTC, Microsoft reported an outage causing intermittent Teams calls to drop when answered.
They claimed to have identified the potential problem and were working on mitigating impact.