Community and IT admins have been coping with ongoing Microsoft 365 points this week, reporting that some finish customers can not use Microsoft Outlook or different Microsoft 365 apps.

The problems began Monday, with quite a few admins contacting BleepingComputer to say that a few of their customers are experiencing disruptive points in Microsoft Outlook, with this system not opening, freezing after opening, seeing delays in mail supply, or errors saying there isn’t a legitimate license related to the consumer.

These identical points have been confirmed by different admins on Reddit [1, 2, 3] and within the Microsoft forums.

“Is anybody having points with workplace in any respect? We have now a division utilizing HP probook 450 G9 , each single one is experiencing outlook, phrase and many others being actually gradual and never responding,” reads a post on Reddit.

“The standing web page would not record these signs however have a number of customers on my org reporting they can not sign up to groups or outlook. Toggling their licenses from enterprise fundamental to e1 seems to allow them to in. Anybody heard something?,” another post on Reddit reads.

“Have a number of customers who’re unable to sign up and authenticate with desktop apps. Some connection to Microsoft seems fully down for them… even the defender scan when putting in new software program experiences it isn’t in a position to join. The climate widget is down. OneDrive, Groups, Phrase… all down. However they will use browser variations,” commented one other admin.

A lot of the complaints seen by BleepingComputer have been about Microsoft Outlook, however there are additionally experiences that customers are experiencing crashes and freezes in Phrase, Excel, and Groups.

Whereas Microsoft has not shared any information about these points publicly and is but to answer to a request for more information from BleepingComputer, some admins have give you numerous options that helped resolve the issues on their community.

The workarounds shared by numerous admins within the Reddit threads above embody:

• Make sure the Outlook, SharePoint, or different Microsoft 365 apps are enabled for customers within the Azure AD Tenant.
• Take away and add again Microsoft 365 licenses to impacted customers.
• Disable the Web Protocol Model 6 (TCP/IPv6) setting within the workstation’s community adapter properties.
• Uninstall EDR safety software program appeared to assist with efficiency (Not really helpful as an answer).

Nevertheless, these workarounds haven’t labored for everybody.

“No Mac experiences right here, however the Home windows experiences simply carry on coming. I did attempt the take away/re-add of the customers’ A3 licenses in Azure AD primarily based on the opposite feedback, however that no impact,” shared an admin right now.

Due to this, some admins have switched affected customers to Outlook on the Net (OWA) till these points are addressed.

What’s so irritating about this situation is that it doesn’t have an effect on all tenants and even all customers in a tenant, making it laborious to trace down what precisely is inflicting the issue.

On Tuesday, Microsoft offered a workaround for a problem with Microsoft Outlook that additionally causes efficiency points and freezes when launching the applying.

“One identified explanation for this symptom is cache re-priming. That is anticipated if the consumer has created a brand new profile, or manually toggled from REST to MAPI by disabling Shared Calendar Enhancements,” Microsoft says.

“Nevertheless, as a consequence of endemic issues in studying service enabled characteristic’s standing in non-Workplace MAPI primarily based functions, working such apps can pressure this toggle unexpectedly.”

It’s unclear, although, if this is identical situation reported by admins or a special one, as there isn’t a point out of lacking licenses or issues with different Microsoft 365 apps.

BleepingComputer has as soon as once more reached out to Microsoft to see if they’re conscious of the problem and if there are any workarounds, however a response was not instantly out there.