● Covered by 1 source · 1 reportLow impact1 neutral
Microsoft Teams Desktop Client Experiences Opening Delays and Call Issues for Some Users
Key points
- Windows users experience delays opening Teams desktop client.
- Mac users are unable to join Teams calls and meetings.
- Microsoft is investigating root causes for both issues.
- Workarounds include using web or mobile Teams versions.
Teams Desktop Client Loading Issues on Windows
Microsoft is working to resolve a known issue affecting the Microsoft Teams desktop client on Windows systems. Some users are experiencing delays, up to two minutes, or are completely unable to load the client when first opening it. Microsoft has advised affected users to utilize the web version or mobile app as a temporary workaround.
Mac Users Unable to Join Teams Calls
Separately, Microsoft is investigating an issue preventing Mac users from joining Teams calls and meetings, tracked as TM1466659. Initially, a code change was suspected as the cause for service infrastructure failure, but further review led Microsoft to reassess this understanding. The company is reviewing service logs to identify the actual source of the impact.
Ongoing Investigations and Recent Fixes
Microsoft is analyzing service logs and telemetry data for both issues and has contacted affected users to aid in root cause identification and mitigation. These incidents follow recent resolutions, including an April fix for Microsoft Teams Free users unable to chat and call, and a Tuesday confirmation of a bug causing crashes in Teams and New Outlook after August 2026 Windows security updates. An ongoing Exchange Online issue is also delaying email delivery for some users.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
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Reporting from
Microsoft is addressing an issue causing delays or preventing some Windows users from opening the Teams desktop client, with loading times up to two minutes. Concurrently, Mac users are unable to join Teams calls and meetings, and Microsoft is investigating the root cause.