[SOLVED] Microsoft Teams Error Code CAA70004

Are you facing the error code CAA70004 problem in Microsoft Teams? Then follow this article until the end to learn how to fix the Microsoft Teams error code CAA70004 problem pretty easily.


The error code CAA70004 from Microsoft Teams indicates that the application is unable to sign you into its own server successfully. This error can be caused by a number of factors, including the buildup of cache files, the disruptions of a background process associated with MS Teams, the use of a virtual private network (VPN), various logins from different devices, and changing the login details associated with the MS Teams account.

And so, keep following me through the rest of the article as we discover and resolve the problems that are causing the error number caa70004 to appear for Microsoft Teams.

Reasons Why Microsoft Teams Error Code CAA70004 Appear

The Microsoft Teams error number caa70004 is most often brought on by deactivated ADAL and Live ID packages, as well as deactivated TLS settings in the network options. Altering the credentials associated with a Microsoft account, using a virtual private network (VPN), building trash in cache files, and running many simultaneous sessions of the application all result in the error number ca70004 being generated in MS Teams.

We were able to identify a few potential causes for the error number caa70004 that is generated by Microsoft Teams. The majority of them are associated with the internet settings of your device as well as the internal package libraries.

In the following section, you’ll get a complete rundown of all the many reasons why the error code for MS Teams might have occurred. Look among them for the core of the problem you’re having.

The following are the causes of the error number caa70004 that you may encounter while using Microsoft Teams:

VPN Is Turned On

Therefore, the cause of the error number caa70004 in MS Teams may lie in the fact that you are connecting to the service by means of a virtual private network (VPN).

In order to get the information associated with your account, MS Teams demands that you maintain a constant connection with its server. When you use a virtual private network (VPN), this connection is slowed down, and the real-time data transmission that occurs between your Microsoft Teams client and the server is interrupted. Because of this, attempting to sign in to your Microsoft Teams account will result in the occurrence of the error number caa70004, which will prevent you from doing so.

Disruption From Other Apps Or Temporary Glitches in MS Teams

The error number caa70004 is generated when the Microsoft teams’ background processes are unable to execute properly on your device, and the Microsoft teams are obliged to shut down part of their processes as a consequence.

Performing a variety of procedures in the background on a corporate communication platform like Microsoft Teams is necessary in order to ensure that all available options are always accessible.

However, if it is required to terminate certain processes in order to comply with the demands of other applications or your RAM optimizer, then it will malfunction and provide you with the error number caa70004.

Microsoft Teams Account Is Unlisted in Windows

There is a chance that you may run into the Microsoft Teams error number caa70004 if your Microsoft Teams account is not displayed in the Windows account manager.

Information on your computer will be synchronized thanks to Microsoft Teams and the Windows Accounts Manager. In the event that the synchronization process is disrupted, your account will be unable to log in to the application and will display the error number caa70004.

Corrupted or Missing Windows Packages

In order to ensure that its activities are carried out without a hitch, Microsoft Teams requires that extra programs be installed inside Windows. However, if any of these programs become damaged or if they were never loaded on your personal computer in the first place, you will get the error number caa70004 from Microsoft Teams.

The Active Directory Authentication Library (ADAL) and the Live ID library are examples of this kind of library. One of the tools that come along with the Microsoft.NET framework is called ADAL.

Client application builders are given the ability to connect users to an Active Directory deployment or the cloud using this. Additionally, Windows Live ID serves as the identity management and authentication system for all of Microsoft’s online services.

Therefore, the use of one of these platforms is required in order to execute a web-based program such as Microsoft Teams successfully. Any problems that arise with them will immediately be reflected in the app in the form of the error number caa70004.

Several Active Sessions of the Teams App

You will get the error number caa70004 if you are signed in to MS Teams on numerous devices at the same time and the sessions on each device are active. This is because MS Teams is unable to synchronize the activities taking place across various devices on the account.

Consequently, getting the error number caa70004 on the Microsoft Teams app will result from signing into MS Teams from more than one device at the same time.

Unnecessary Excessive Cache Files

Every application that runs on Windows produces temporary cache files in order to carry out the operations that they are responsible for. Additionally, a substantial accumulation of cached files is produced whenever the Microsoft Teams program is used frequently. The previously used cache files become outdated once you update your credentials, such as the password, which disrupts the operations that are running in the background of the program.

It is possible that this conflict is the origin of the error code caa70004 that occurs on MS Teams, which in turn creates issues in signing in to the application.

Ways To Fix Microsoft Teams Error Code CAA70004 Problem

So, now that we know what the possible reasons for this Microsoft Teams error code CAA70004 problem are, it’s time to fix this issue. However, We strongly recommend that you proceed with caution when using the methods that we have outlined below in order to rectify the problem code.

In order to prevent any issues, make sure you read them completely before using them.

Therefore, the following solutions can be used in order to fix the Microsoft Teams error code caa70004:

1. Do Not Use Any VPN Service

The Microsoft Teams app allows for seamless, real-time collaboration between employees in a corporate setting. Because using a Virtual Private Network (VPN) slows down the connection, a connection that is already established with a distant server might get disrupted.

Consequently, if you want to steer clear of annoyances such as the MS Team error number caa70004, you should discontinue utilizing a VPN. Additionally, it will assist you in avoiding additional problem codes that may appear inside the Teams application.

If you want to prevent problems like this one, you should use a direct connection instead of a proxy server or a virtual private network (VPN).

2. Launch Microsoft Teams As An Administrator

There are situations when the Microsoft Teams app has trouble running when it is first launched, and the system optimizer may delay some tasks. In such a scenario, you will need to exit the application and then launch it again while logged in as the system administrator.

If you want to use the MS Teams app with administrative privileges, follow these steps:

  • Click the right mouse button on the Start
  • Select Task Manager from the menu.
  • Conduct a search for the Microsoft Teams process, and then click on it.
  • Click on the End Task button on the upper sanction if you are a Windows 11 insider preview user, or you can find the End Task button in the below right side corner.


  • Right-click on the MS Teams shortcut icon and select Run as administrator.

Now that this problem has been resolved, Microsoft Teams will be able to execute its processes with administrator capabilities, hence resolving the error number caa70004.

3. Disconnect And Reconnect Microsoft Teams’ Account In Windows

Accordingly, connecting your active account for Microsoft Teams to your Windows account manager will fix the problem number caa70004 that you get while using Microsoft Teams. It grants authorization to the Microsoft Teams account that is managed by the account manager.

Follow these steps in order to add your user accounts for Microsoft Teams in the Settings app for Windows 11:

  • Go to the settings by clicking on the Start button on Taskbar and selecting Settings. Or press the Win + I button on your keyboard to do the same.
  • Navigate to the Accounts > Access work or school, and search for the account that you are using to sign in to MS Teams.
  • Now press on Disconnect button on that account and confirm it by pressing Yes.


  • After disconnecting the account, hit the Add button to re-add that account once again.

Once you are done completing all the steps above, clear the cache files of MS Teams and check to see if the problem still arrives or not.

4. Launch Microsoft Teams In Compatibility Mode

If you use the Microsoft Teams application when Windows is in compatibility mode, it will resolve issues with the program’s ability to execute its background processes and will also assist in resolving the error number ca70004.

If you want to use the Microsoft Teams software while it is compatible with Windows, follow the instructions below:

  • Click on the Start button on the Taskbar and search for Teams and right click on it and select Open file location.
  • On the file location, right-click on the Teams icon and select Properties.
  • Navigate to the Compatibility tab and tick mark the option that says Run this program in the Compatibility Mode, and select Windows 8.

  • Once you are done, press the OK button to save the change.

Start Microsoft Teams all over again and check to see whether the problem number is still there.

5. Delete Microsoft Teams’ Cache Files

After changing the password for your Microsoft account, you may be able to resolve the Microsoft Teams problem number 70004 by deleting the cache files for the MS Teams app. It will delete all of the temporary information that was previously saved about your log-in sessions and will reactivate the application’s processes.

Follow the procedures below on your computer to delete all of the temporary files associated with the Microsoft application:

  • To launch the Run application, press the Win + R key simultaneously on your keyboard.
  • In the box, type %appdata%\Microsoft\teams, and then click the Enter key on your keyboard.
  • Delete the folders that have the following names: application cache, blob_storage, Cache, databases, GPUcache, IndexedDB, Local Storage, and tmp.


You will need to restart your computer and then open Microsoft Teams. Check to see if the problem still persists or not.

6. Reinstall Faulty Or Missing Libraries

You may recall that I said before that Microsoft Teams is dependent on certain platforms, like ADAL and Live ID, for it to operate correctly and free of errors and other issues. When you attempt to sign in to the Microsoft Teams app, you will see the error number CAA70004 when these platforms are not present on your device or if they have been corrupted.

Simply uninstalling and reinstalling these items will cure the problem.

To successfully install the ADAL and Live ID packages, please follow the procedures that are outlined below:

  • Click on the Start button on the Taskbar and search for Powershell and right click on it and select Run as administrator.
  • On the PowerShell, enter the below command to reinstall the ADAL service:

if (-not (Get-AppxPackage Microsoft.AAD.BrokerPlugin)) { Add-AppxPackage -Register “$env:windir\SystemApps\Microsoft.AAD.BrokerPlugin_cw5n1h2txyewy\Appxmanifest.xml” -DisableDevelopmentMode -ForceApplicationShutdown } Get-AppxPackage Microsoft.AAD.BrokerPlugin


  • Then enter the below command to reinstall the Live ID package:

if (-not (Get-AppxPackage Microsoft.Windows.CloudExperienceHost)) { Add-AppxPackage -Register “$env:windir\SystemApps\Microsoft.Windows.CloudExperienceHost_cw5n1h2txyewy\Appxmanifest.xml” -DisableDevelopmentMode -ForceApplicationShutdown } Get-AppxPackage Microsoft.Windows.CloudExperienceHost


  • Now, wait for the package installation process to be finished.
  • Once that’s done, restart your computer to take effect.

Now open MS Teams and check to see if the problem still arrives or not.

7. Enable TLS Options In Internet Settings

Enabling TLS in the Internet Settings panel of Windows creates a secure channel for communication between the user’s applications and the internet. If it’s not enabled, you can get the error number CAA70004 if anything goes wrong. The issue may be resolved by activating the feature inside the internet settings.

In order to activate TLS in the internet settings, follow the procedures that are outlined below:

  • Click on the Start button on the Taskbar and search for Internet Options, and hit the Enter button on your keyboard.
  • Navigate to the Advanced tab and expand the Security
  • Now on the TLS 1.1 and TLS 1.2 checkboxes, tick the mark and hit the OK button to save the changes.


Now launch the MS Teams app all over again and check if the error code CAA70004 is gone or not.

8. Reinstall Micorosft Teams

It’s possible that uninstalling the app and then reinstalling it would fix the error number CAA70004 that you see in Microsoft Teams.

But only do this after following all the methods above and still can’t fix the issue.

To remove the Microsoft Teams application from your computer, you will need to follow these steps:

  • Press the Win + I button on your keyboard to open the Settings Alternatively, you can click the Start menu and go to Settings.
  • Navigate to Apps > Installed Apps.
  • Search for Microsoft Teams and click on the three-dot button on the right side.
  • Now uninstall it by selecting the Uninstall


Now your MS Teams has been uninstalled completely. Go to the official website of Teams and download the setup file and install it as usual. The official website of Teams is https://www.microsoft.com/en-ww/microsoft-teams/log-in.


The error code CAA70004 has been bothering many Micorosft Teams users in recent days. So, after conducting some intense research, we rounded up some of the best possible ways to fix the Microsoft Teams error code CAA70004 problem. We hope, after following the solutions above, you have successfully solved the problem.