6 Best Ways to Fix Microsoft Teams Error 0xcaa80000

The 0xe80000 error in Microsoft Teams typically indicates server-related issues. It can also stem from incorrect internet settings, corrupted cache files, or outdated application software.

In this guide, I’ll walk you through the steps to fix the 0xcaa80000 error in Microsoft Teams.

Let’s begin!

TL;DR Version

Here are some quick fixes to try if you encounter the 0xcaa80000 error on Microsoft Teams:

  1. Check Microsoft Teams Servers
  2. Check Date and Time Settings
  3. Disable Background Apps
  4. Update Microsoft Teams
  5. Enable TLS 1.1 and 1.2
  6. Delete App Caches

1. Check Microsoft Teams Servers

As mentioned, server-related issues are the most common reason for this error. 

Try checking Microsoft’s dedicated status page to see if there are ongoing problems with Teams or other services. 

Microsoft Server Status

If the servers are down, it’s best to wait for their team to address the solution and try again. 

Related: Teams Chat Not Working on Windows 11? Here’s the Fix!

2. Check Date & Time Settings

Having the wrong date and time on your computer can also cause Microsoft Teams to run into errors. 

Like other online apps, Microsoft Teams can flag your computer suspicious if it doesn’t have the correct date and time. 

Here’s how you can change your date and time: 

  1. Press the Windows key to open the Start Menu
  2. Next, look for ‘change the date and time’. 
  3. Click on Open
Taskbar Search
  1. Enable the Set Time Automatically option. 
Set Date and Time
  1. Select the correct time zone for your region. 
  2. Restart your computer. 

Related: Has Microsoft Teams Stopped Working on Windows 10? Here’s The Fix!

3. Disable Background Apps

Third-party software can sometimes affect other apps like Microsoft Teams. 

Try closing unused applications and see if the error code 0xcaa80000 would still occur on Microsoft Teams. 

  1. Press CTRL + SHIFT + ESC on your keyboard to open the Task Manager
  2. Now, go to the Processes tab
  3. Identify the apps you’re not using. 
  4. Select an app and click End Task to close it. 
  5. Repeat the process until you’ve closed all unused applications. 
Task Manager

Related: How to Fix Microsoft Teams the Request is Not Properly Formatted

4. Update Microsoft Teams

The version of Microsoft Teams you’re using might have an underlying issue that causes the 0xcaa80000 error to occur. 

Make sure you’re using the latest version of Teams to avoid problems. 

Here’s how you can update the app: 

  1. Open Microsoft Teams on your computer. 
  2. Next, click the three horizontal dots next to your Profile icon
  3. Select Check for Updates
  4. Follow the prompts to proceed with the update. 
microsoft teams error 0xcaa80000

Related: How to Fix Can’t Download Updates on Microsoft Teams

5. Enable TLS 1.1 and 1.2

Transport Layer Security (TLS) ensures secure communication over computer networks.

Disabling this feature may cause the 0xcaa80000 error in Microsoft Teams, as it perceives your computer as unsecured.

Follow the steps below to enable TLS:

  1. Open the Start Menu. Click the Windows icon on the Taskbar or press the Windows key on the keyboard. 
  2. Next, look for Internet Options and open it. 
microsoft teams error 0xcaa80000
  1. Go to the Advanced tab. 
  2. Scroll down and find TLS 1.1 and TLS 1.2
  3. Enable the two options.
  4. Click OK to apply the changes. 
microsoft teams error 0xcaa80000

Related: How to Fix Microsoft Teams Installation Issues

6. Delete App Caches

Clearing your app cache to delete temporary files from previous sessions can also help address the 0xcaa80000 error. 

Follow the steps below to guide you through the process:

  1. Make sure Microsoft Teams is closed. 
  2. Next, press Windows + R on your keyboard. 
  3. Type %appdata%\Microsoft\teams and hit Enter
  4. Inside the Teams directory, delete all the folders below:
Application Cache






Local Storage

  1. Restart your computer. 

Related: How to Fix High CPU and Battery Usage by Microsoft Teams


Why is my Microsoft Teams unable to connect?

If you’re experiencing connection problems with Microsoft Teams, first verify your internet connection. Test your network by browsing other websites or conducting a speed test. Additionally, you can visit Microsoft Teams’ status page to check for any current service disruptions.

How do I clear my MS Teams cache?

You can clear your Microsoft Team’s cache by doing the following: 

  1. Make sure Microsoft Teams is closed. 
  2. Next, press Windows + R on your keyboard. 
  3. Type %appdata%\Microsoft\teams and hit Enter
  4. Inside the Teams directory, delete the Application Cache and Cache folder

Will clearing cache in Teams delete chats?

No. Clearing Microsoft Teams cache doesn’t delete personal data and settings, which includes chats. 

What does clearing cache do?

Clearing the Microsoft Teams cache removes all temporary files stored on your computer. These files are originally meant to enhance Teams’ performance, ensuring a smoother user experience.

What happens if I delete Microsoft Teams chat files?

Deleting chat files in Microsoft Teams removes them from the chat for all participants. However, these files are not permanently lost; they are moved to the OneDrive recycle bin, where you have the option to restore them if needed.

If this guide helped you, please share it. 


  • John Sixto

    John is a staff writer at Saint and comes from a SAP ABAP development background. He has a Bachelors in IT and has been writing since 2018, with over 500 posts published. He loves to build PCs and has a deep curiosity in understanding how different components and configurations work. John spends hundreds of hours at a time, researching and testing the software and apps, before he proceeds to write about it. LinkedIn X (Twitter)

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