Fix Microsoft Teams App Error Code caa7000c & caa7000a

Microsoft Teams is an incredibly useful collaboration and communication tool for work and school. But nothing disrupts productivity faster than frustrating error codes! Two of the most common Teams errors are caa7000c and caa7000a. 

Yet, these codes can often be fixed with a few easy troubleshooting steps. 

What Causes Error Code caa7000c?

The caa7000c error indicates that the Teams desktop app is unable to connect properly to Microsoft servers. There is likely corrupted cache data blocking Teams from accessing your account. Clearing this cache usually resolves the issue right away.

Some potential reasons you might get a caa7000c error include:

• Outdated Teams desktop app – Make sure you have installed the latest updates.
• Conflict with other software – Antivirus or firewall programs can sometimes interfere with Teams.
• Connectivity problems – Teams relies on a stable internet connection. Connection drops can disrupt the service.
• Storage issues – Full hard drive or too many files in the Teams cache folders.
• Account hiccups – Password changes, expired licenses, or multi-factor authentication errors.

How to Troubleshoot Issue and Fix Microsoft Teams Error Code caa7000c

If you encounter caa7000c in the Teams desktop app, try these troubleshooting steps:

Method #1 – Clear the Cache

Clearing your Teams cache forces the app to rebuild necessary connection files from scratch. Corrupted cache data is the most common cause of caa7000c errors.

Here is how to clear the Teams cache:

1. Close the Teams desktop app completely.
2. Open File Explorer and enter “%appdata%\Microsoft\Teams” in the file path.
3. Delete all files and folders from the following cache locations:
   • %appdata%\Microsoft\Teams\application cache\cache
   • %appdata%\Microsoft\Teams\blob_storage
   • %appdata%\Microsoft\Teams\Cache
   • %appdata%\Microsoft\Teams\databases
   • %appdata%\Microsoft\Teams\GPUcache
   • %appdata%\Microsoft\Teams\IndexedDB
   • %appdata%\Microsoft\Teams\Local Storage
   • %appdata%\Microsoft\Teams\tmp
4. Restart your computer.
5. Re-open the Teams app and see if caa7000c is gone.

This flushes out old cache data so Teams can rebuild fresh connection files. In most cases, this quickly resolves caa7000c errors.

Method #2 – Restart MS Teams Client

If clearing the cache doesn’t fix caa7000c, try restarting the Teams desktop app. A simple restart can clear any temporary glitches causing the connectivity issues.

To restart Teams:

1. Right click the Teams icon in the system tray.
2. Choose “Quit Teams” to fully close the app.
3. Open Teams again and sign in. The error may disappear on relaunch.

Method #3 – Uninstall and Reinstall Teams App

For very stubborn caa7000c errors, uninstalling and reinstalling Teams might be needed. This completely resets the app and forces creation of new cache files.

Follow these steps to reinstall Teams:

1. Uninstall Teams through the Control Panel.
2. Restart your computer.
3. Download the latest Teams installer from Microsoft.
4. Run through the installation steps.
5. Sign in to Teams and see if caa7000c appears.

This isn’t always necessary but can help if other fixes aren’t working. Just be sure to backup any important Teams files first!

What Triggers Error Code caa7000A?

The caa7000a error also relates to connectivity issues with Microsoft servers. But while caa7000c points to cache problems, caa7000a is usually tied to account, network, or computer conflicts.

Some potential causes include:

• Firewall/antivirus software blocking Teams
• Proxy server settings interfering with connectivity
• Using personal and work/school accounts on same computer
• Multiple accounts signed in causing confusion
• Outdated Windows installation
• Corrupted Windows user profile
• Unreliable internet connection

Troubleshooting and Fixing Error Code caa7000a in Microsoft Teams App

Caa7000a can be a bit trickier to pinpoint than caa7000c errors. Try these steps to troubleshoot:

Method #1 – Clearing and Deleting MS Teams’ Cache Data

As always, start by clearing your Teams cache using the steps outlined above. While not the direct cause of caa7000a, flushing the cache gives Teams a fresh start.

Method #2 – Check Network and Firewall

Since caa7000a relates to connectivity:

• Try changing networks or temporarily disabling firewalls/VPN. This isolates if they are interfering.
• Test your internet speed and reliability. Reboot routers and modems if needed.
• Adjust proxy settings or switch to direct connections if possible.
• Allow Teams through firewall and antivirus apps if necessary.

See if any network tweaks resolve the problem.

Method #3 – Switch Computers

Try signing into the problematic account from another Windows device if available. This checks if the issue stems from the user profile or computer.

If the error follows the account, the problem is tied to the individual user or license. But if Teams works fine on another computer, then your device’s settings are likely causing caa7000a.

Method #4 – Update Windows

Make sure Windows is fully updated on the affected computer. Outdated operating systems can disrupt Teams connectivity.

Go to Start > Settings > Update & Security to check for pending Windows updates. Install any available patches or upgrades. A restart may be required after updating.

Method #5 – Create New User Profile

If other users don’t get caa7000a on the same Windows computer, try creating a fresh user profile for the affected account.

Corrupted Windows profiles sometimes cause conflicts with Teams. Resetting to a clean profile should resolve this.

To create a new Windows user profile:

1. Go to Start > Settings > Accounts > Family & Other Users
2. Select “Add someone else to this PC”
3. Click “I don’t have this person’s sign-in information”
4. Choose “Add a user without a Microsoft account”
5. Create a new local user account with admin rights
6. Sign into this account and test Teams for caa7000a errors.

Deleting the old corrupted profile may be needed if the new one works properly. This will remove any problematic cached data.