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Microsoft Teams Error Code 80080300: How to Fix Microsoft Teams 80080300 Error Code?

Microsoft Teams Error Code 80080300: Make amends with your MS Teams programme by resolving Microsoft Teams Error Code 80080300. This sign-in error code irritates many people. Users cannot participate in an online video call or conference because they cannot sign in to their accounts due to this problem.   

by A Kevin Jude Felix | Updated Oct 18, 2021 12:55 PM

Microsoft Teams Error Code 80080300: How to Fix Microsoft Teams 80080300 Error Code?
Source: ViralTalky

How to Resolve Microsoft Teams Error Code 80080300?

Microsoft Teams Error Code 80080300 is a sign-in error that signals a problem with the software's connection to the server. This error code may also indicate a compatibility problem. The compatibility troubleshooter is the best way to resolve this problem number. Furthermore, you can clean the application cache, as a damaged cache is the primary cause of many sign-in failures on MS Teams.

The steps of the instant solution are described below, and even if you are not a technical person, you can follow them.

Clear the Application Cache

The steps to remove the MS Teams cache are pretty straightforward; here's all you need to do:

  • To begin, navigate to the folder by following the route provided below:


  • All of the folders will be displayed here (MS Teams).

  • To select all of these folders at once, use keyboard shortcuts.

  • Then you must delete these files and folders. That's all.

The reason for emptying the cache: Most MSTeam sign-in failures are caused by corrupted cache files. So, in this case, clearing these cache files is a brilliant idea to keep your programme safe from errors.

Run Compatibility Troubleshooter

Running the Compatibility Troubleshooter is a great way to resolve Microsoft Teams Error Code 80080300. By doing so, many people have been able to resolve the problem.

  • Sign out of the MS teams (if feasible) or close the app entirely.

  • Now, right-click on the Teams icon and pick Properties from the drop-down menu.

  • Then, from the window that appears, pick the Compatibility Tab.

  • Now, select Run compatibility troubleshooter and wait for it to finish.

  • Try relaunching the Teams app to see if the error persists.

Note: If it doesn't work the first time, try again.

Examine For An Update

  • Open Windows Settings to check your Windows Update settings.

  • Navigate to the Update & Security tab.

  • Now, click the Check for updates button to view the currently available updates.

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Disclaimer: The above information is for general informational purposes only. All information on the Site is provided in good faith, however we make no representation or warranty of any kind, express or implied, regarding the accuracy, adequacy, validity, reliability, availability or completeness of any information on the Site.

Microsoft Teams Error Code 80080300: FAQ

1. What to do when Microsoft Teams says initializing?
  • Restart your device and router
  • Additionally, check if you're logged into Teams on another device
  • If you're experiencing this issue on your desktop app, try signing in to Teams' web version
  • Check your firewall settings and make sure the Teams app isn't blocked.
2. How do I fix error code 80080300?
  • Sign out, if possible or at least close the app.
  • Go to properties (Right-click on the icon)
  • Compatibility Tab.
  • Run compatibility troubleshooter and complete it.
3. Why my MS teams is not working?

You may need to reboot Teams manually to force a refresh.

Solution 1: Find the Microsoft Teams icon on our taskbar, then right click and chose Quit. ... Solution 2: Try connecting via the Teams web app instead of using the desktop app. Alternatively logging out and back into your account on the Teams app may also help.

4. How do I fix Microsoft Team error code Caa70007?
  • Clear Browser Cache
  • Release and Renew IP Address
  • Run Compatibility Troubleshooter
  • Clear Teams Cache
  • Set Date and Time to Automatic
  • Enable All TLS Options
  • Disable Server Certification Revocation.
5. How do I clear MS teams cache?

Fully quit Microsoft Teams and ensure it's not still running in the toolbar at the bottom right of Windows. Navigate to %appdata%/Microsoft/Teams in a File Window. Select everything in the folder. Delete everything.

6. What is error code 4c7 Microsoft Teams?

Your status code is 4c7”, it usually happens when signing into Microsoft Teams when you connect from a corporate network where AD FS is installed. For more detailed steps on the resolution, please kindly refer to "Modern authentication failed here, but you'll still be able to sign in.

7. Why is my Microsoft account locked?

Your Microsoft account can become locked if there's a security issue or you enter an incorrect password too many times. Microsoft will send a unique security code to the number. Once you've got the code, enter it into the form on the webpage to unlock your account. You'll now need to change your password.