Fix Microsoft Teams Error code caa7000a

Some PC users are reporting the issue whereby they encounter the Error code caa7000a when attempting to log into the Microsoft Teams desktop app on Windows 11 or Windows 10 computer. This post is intended to help affected users with the most adequate solutions to fix the issue.

When you encounter this issue, you will receive the following error message:

What is error code caa7000a Microsoft Teams?

If you have encountered the error code caa7000a Microsoft Teams on your Windows PC, it simply means there is a network-related error and primarily occurs on the desktop client of Teams making the software practically unusable.

Microsoft Teams Error code caa7000a

PC users that are faced with this issue on Windows 11/10 system, can try our recommended solutions below in no particular order and see if that helps to resolve the issue.

  1. Temporarily disable Security Software
  2. Run Microsoft Teams with admin privilege
  3. Run Teams in Compatibility Mode
  4. Clear Windows Credentials
  5. Troubleshoot WiFi connection issues
  6. Uninstall and reinstall Teams
  7. Use Teams Web version

Let’s take a look at the description of the process involved concerning each of the listed solutions.

1] Temporarily disable Security Software

Third-party security software especially can be interfering with the Teams login attempt, consequently triggering this error code caa7000a Microsoft Teams. In this case, you can disable the security software and see if that helps. You can also make sure that Teams is allowed through the Windows firewall. If you’re running a dedicated firewall, refer to the instruction manual.

Generally, to disable your antivirus software, locate its icon in the notification area or system tray on the taskbar (usually in the lower right corner of the desktop). Right-click the icon and choose the option to disable or exit the program.

2] Run Microsoft Teams with admin privilege

Some affected users reported they were able to resolve the issue at hand by running Teams with admin privilege. Try the next solution if this didn’t work for you.

3] Run Teams in Compatibility Mode

This solution requires you to run Teams in compatibility mode and see if that helps. Proceed with the next solution if this wasn’t helpful.

4] Clear Windows Credentials

If you can sign into Teams on another Windows computer, chances are the Credentials on the other other computer is corrupt. In this case, you can clear Windows credentials on the problematic PC and see if that resolves the issue. Otherwise, try the next solution.

5] Troubleshoot WiFi connection issues

Since this is a network error, you can troubleshoot WiFi connection issues on your Windows 11/10 PC. You can also sue this guide on how to fix Network & Internet connection problems. If nothing works, consider switching to the ethernet connection.

6] Uninstall and reinstall Teams

This solution requires you to uninstall Microsoft Teams app, clear Teams AppData folder contents, reboot PC, and then download and install the latest version of Teams app on your Windows 10/11 PC.

To clear/delete Teams AppData folder contents, do the following:

  • Press Windows key + R to invoke the Run dialog.
  • In the Run dialog box, type the environment variable below and hit Enter.
  • At the location, find (you may need to show hidden files/folders) the Teams folder.
  • Right-click the folder and select Delete. Confirm any additional prompts.
  • Exit File Explorer.

7] Use Teams Web version

As last resort, if nothing has worked so far for you, your best workaround is to use the web version of Microsoft Teams at The web version works and you can be able to run Teams for multiple tenants.

Hope this helps!

How do I fix something wrong with Microsoft Teams?

If you have encountered the Microsoft Teams Something Went Wrong error on your Windows 11/10 device, you can follow these instructions to fix the issue: Power cycle the router. Network problems can often be resolved by restarting the router. Check your sign-in credential. The Something Went Wrong error can be a result of incorrect sign-in information being entered. Remove sign-in credentials from Windows. Check service status.

Why is my Microsoft Teams glitch?

At times you may notice Microsoft Teams glitch or maybe sometimes Teams app get stuck in a crash and launch loop. To troubleshoot this issue, update your app, log in again, and update your graphics driver. Additionally, try to open Teams from a previous version.

Why is Teams link not working?

If you notice the Teams link is not working on your Windows 11/10 PC, it is most likely, this problem is caused by the app cache. To resolve the issue, you can try clear the cache, update the app and check the results. If nothing works, simply copy the link and paste it into a new tab.

Related post: How to fix Microsoft Teams error caa70007.


— Update: 14-03-2023 — found an additional article How to fix Microsoft Teams error code CAA7000a (FIXED) from the website for the keyword fix microsoft teams error code caa7000a.

Microsoft Teams is an online collaboration tool that has made working remotely easier with real-time collaborations, file sharing, voice and video calls, etc. MS Teams software sometimes generates an error code CAA7000a. This is a network related error and mainly occurs in the MS Teams desktop client, rendering the software unusable. In this guide, we will go through different methods that can help us get rid of this error.

MS Teams Error Code CAA7000a: Working Solutions

There are times when the caa7000a error code becomes a nuisance. You might have to jump into an important video session which is hampered by this error. So here's what you can try:

1. Log in through the web client

The fastest possible solution here is to sign in to your Microsoft Teams account through the web app.

The error code caa7000a has been reported as an issue with the Microsoft Teams desktop client.

Via @:

You can log into MS Teams at address and sign in with your MS Teams credentials. If that doesn't solve your problem, try the following.

2. Network Services Problems and Troubleshooting

Microsoft error code caa7000a can also occur, but be aware that this occurs rarely, due to an error in the provider's network services.

Better to check if you can connect to MS Teams through a mobile app.

If you are unable to sign in with your credentials through the MS Teams mobile app, it could be a provider-side issue. You can contact your system or network administrator to find a possible solution and support.

3. Clear the DNS cache

Another possible culprit of the CAA7000a error could be network related, so updating your computer's DNS cache is recommended.

To delete the Windows DNS cache, open a Command Prompt window with administrative rights.

  • You can do this by typing ” cmd »In the search bar.
  • Right click on the Command Prompt tab and select ” Execute as administrator «.

In the Command Prompt window, enter the following and press Enter:

ipconfig / flushdns

This will update the DNS cache. A restart may also be necessary.

4. Reinstall Microsoft Teams

While it doesn't matter what the cause is (corrupted files, etc.), it seems that a clean install of Microsoft Teams worked for many users facing this error. Here is how you can uninstall and reinstall MS Teams.

  1. Type ” uninstall »In the search bar and click on» Add or remove programs «.
  1. Click to highlight the Programs Microsoft Teams .
  1. Click the Uninstaller tab.
  1. Once the program is completely uninstalled, restart your computer.
  2. Download now the latest version of Microsoft Teams from the official site. Click here to download .
  3. Navigate to the location of the downloaded file and install it .
  1. Once the installation is complete, connect you with your credentials. The error code caa7000a should now go away.


Here are some of the ways you can fix Microsoft error code caa7000a for Microsoft Teams. However, it is important to consider that this is an error that originates from network services. Before you jump into using the methods listed here, it is best to contact your system administrator and ask for a solution. Many times you will get help immediately and you won't have to endure the pain of going through all the steps. If you know of a workaround or fix that we haven't listed, feel free to tip us or share it with the community in the comments section below.


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