On August 24th at roughly ~5:30 pm UTC, Microsoft reported an issue with users being unable to access the Admin Portal.
Shortly after, they reported that they had identified that a recently-applied update may have been the source of the issue and that they were attempting to revert the updates to mitigate impact.
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 15th, 2020 at ~ 4:30 pm UTC, Microsoft reported an issue that was affecting users’ ability to access Outlook.
They soon after reported that they were investigating a recently deployed update that they thought may be the source of the issue.
On July 14, 2020 at ~7:00 pm UTC, Microsoft reported via @MSFT365status that some users in EMEA were experiencing issues accessing SharePoint Online and OneDrive for Business.
Roughly 45 minutes later, Microsoft reported that users may also be experiencing issues accessing SharePoint Online and OneDrive for Business-hosted content through other services. They reported that they were at that time rerouting service traffic to mitigate impact while they investigated the root cause of the issues.
On July 9, 2020 at ~12:00 pm UTC Microsoft reported that they were investigating an issue where users in the UK are unable to access the Exchange Online service through the Outlook client.
Shortly after, several UK users began expressing their frustration with the recent increase in the number of outages users have experienced all over the world. Some expressed frustrations recommending Microsoft services to their clients and others insisted that the they were still experiencing issues hours later.
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 30th, 2020 at ~12:00 pm UTC, Microsoft reported that they were investigating an issue where many users in Germany were unable to access multiple Microsoft 365 services.
Shortly after, around ~12:45 pm UTC, Microsoft reported that they had determined that the Microsoft 365 service was healthy and that the issue was caused by a third-party local internet service provider.
On June 25th, 2020 at ~2:00 pm UTC, Microsoft reported that they were investigating connectivity problems with Outlook in Europe and the United Kingdom.
Roughly an hour later, Microsoft reported that they were starting to see service restoration and were still monitoring the issue closely to ensure the issue was resolved.