How To Fix Microsoft Error Code CAA50021 Number Of Retry Attempts Exceeds Expectation

Are you encountering the frustrating Microsoft error code CAA50021, indicating that the number of retry attempts exceeds expectations?

This error often occurs during authentication processes for applications such as Microsoft Teams and Outlook.

It can be a roadblock to accessing essential work-related tools, causing inconvenience and disruption. However, fear not!

In this comprehensive guide, we will explore effective solutions to resolve this issue and get you back on track swiftly.

How To Fix Microsoft Error Code CAA50021 Number Of Retry Attempts Exceeds Expectation?

To fix Microsoft error code CAA50021, you can re-register the device, temporarily disable the antivirus, and link your device with the school/work account. Moreover, you may also clear cached credentials, and run the dsregcmd command.

Below is a detailed explanation of all the above-mentioned fixes:

1. Re-register The Device With Azure AD

This fix involves re-registering the device with Azure AD to ensure proper connection. It includes steps such as using the Command Prompt to leave the Azure AD, deleting specific entries from the certificate store, and checking the AzureAdJoined status

• Press Windows + R to open the Run box.
• Type cmd and hit Enter to open the Command Prompt.
• Type dsregcmd /leave and press Enter.
• Delete the MS-Organization-Access and MS-Organization-P2P-Access entries from the certificate store.
• Type dsregcmd /status in the Command Prompt and hit Enter to check the status of AzureAdJoined.

2. Temporarily Disable Antivirus

The error may be caused by third-party antivirus software or Windows Defender Firewall. Temporarily disable the antivirus to see if the error is bypassed.

To temporarily disable antivirus software on Windows 10, you can follow these steps:

1. Using Antivirus Software:
   • Right-click the antivirus program’s icon in the system tray.
   • Choose the option to disable or exit the program temporarily.
   • If you want to enable it again later, you can restart your computer.
2. Using Windows Security:
   • Open the Windows Start menu and type “Windows Security“.
   • Click on “Virus & threat protection” in the search results.
   • Under “Virus & threat protection settings“, select “Manage settings” and switch “Real-time protection” to Off.

3. Link Your Device To The Work/School Account

You can fix the error by linking your device to a work or school account. This can be done through the device settings.

To link your device to a work or school account, you can follow the steps below:

1. Open Settings:
   • Click on the Windows Start menu and select “Settings“.
2. Select Accounts:
   • In the Settings menu, select “Accounts“.
3. Access Work or School:
   • Identify the version of Windows you’re using and then:
     • Windows 10 (version 1607 and later) and Windows 11: Select “Access work or school“.
     • Windows 10, version 1511, and earlier: Select “Work access“.
   • Check for your account. If it’s not listed, select the “Connect” plus sign button to add it.
4. Sign In:
   • Sign in with your work or school credentials.
   • Follow the onscreen prompts to finish connecting.
   • When complete, your account will be added as a connection.

4. Clear Cached Credentials

If you are using Windows, you can clear cached credentials by following these steps:

• Press Windows + R to open the Run box.
• Type control keymgr.dll and press Enter.
• In the window that opens, select the credentials related to the Microsoft service causing the error and remove them.

5. Run Dsregcmd Command

You can try running the dsregcmd /leave command to leave the device from Azure AD. This can be done by following these steps:

• Press Windows + R to open the Run box.
• Type cmd and press Enter to open the Command Prompt.
• In the Command Prompt window, type dsregcmd /leave and press Enter. This will disjoin the device from Azure AD.

6. Update Microsoft Application

Ensure that you are using the latest version of the Microsoft application. Check for updates and install any available updates for the application.

To update Microsoft applications, you can follow the steps below:

1. Using Microsoft Store:
   • Open the Microsoft Store app by clicking on the Windows Start menu and selecting “Microsoft Store“.
   • Click on your account photo in the top right corner and select “Settings“.
   • Make sure “App updates” is turned on.
   • If an update is available, it will start installing automatically.
2. Using Office Applications:
   • Open any Office application, such as Word.
   • Click on “File” and select “Account” or “Office Account” if you open Outlook.
   • Under “Product Information“, select “Update Options” and then “Update Now“.
   • If you don’t see the “Update Now” option, click “Enable Updates” first.
   • Close the “You’re up to date!” window after the Office is done checking for and installing updates.
3. Using Automatic Updates:
   • You can turn on automatic app updates in the Microsoft Store app by clicking on your account photo in the top right corner and selecting “Settings“.
   • Make sure “App updates” is turned on,

7. Contact Your IT Admin

If the above steps do not resolve the issue, it is recommended to contact your IT admin for further assistance, especially if the device has issues with Azure AD or if the error persists after trying the above solutions.

To contact the IT admin for assistance, you can follow these steps based on the specific platform or service you are using:

Microsoft 365:

1. Via Microsoft 365 Admin Center:
   • Go to the admin centre at Microsoft 365 admin center.
   • On the bottom right side of the page, select “Help & support“.
   • Type a question or keyword into the text box to access online support.
   • You can also start a service request online by choosing Support > New service request.
2. Call Support:
   • If you encounter any problem with online requests, phone support is available at the provided number.

Google Workspace:

1. Via Google Admin Console:
   • Sign in to your Google Admin console using your administrator account.
   • Click on “Get help” at the top right of the Admin console and describe your issue in the Help Assistant window to contact support.