Understanding TeamViewer Error Codes: Troubleshooting Made Easy

When using TeamViewer, you might encounter various error codes that indicate specific technical issues. Understanding these codes can help you diagnose and resolve problems more effectively. Below is a comprehensive list of common error codes, their meanings, and suggested solutions to get you back on track.

1. Error Code: 2 – Session Terminated

• Meaning: The remote session has ended unexpectedly, often due to an internet connection loss or the remote user closing the session.
• Solution: Check the internet connectivity on both devices. If the remote user closed the session by mistake, ask them to restart TeamViewer and attempt to connect again.

2. Error Code: 5 – Partner Address Not Found

• Meaning: TeamViewer is unable to locate the device associated with the partner ID you entered. This could result from a typo or the device being offline.
• Solution: Double-check the partner ID for accuracy. Ensure that the remote device is powered on and that TeamViewer is running.

3. Error Code: 18 – Connection Blocked by Network

• Meaning: A firewall or network restriction is obstructing your TeamViewer connection.
• Solution: Review the firewall and antivirus settings on both devices, ensuring that TeamViewer is allowed. If you are on a corporate or institutional network, consult with the network administrator.

4. Error Code: 50 – Unexpected Connection Terminated

• Meaning: The remote connection was unexpectedly terminated due to network issues.
• Solution: Confirm that both devices have stable internet connections. If issues persist, consider restarting your internet connection or router.

5. Error Code: 256 – Unauthorized Session

• Meaning: You are attempting to start a session with a device that has access restrictions or limited permissions.
• Solution: Verify the security settings on the remote device. Ensure that remote access is enabled within TeamViewer settings (Options > Security > Controlled Access).

6. Error Code: 262 – Excessive Connection Attempts

• Meaning: You have attempted to connect unsuccessfully too many times in a short period, resulting in a temporary connection block for security reasons.
• Solution: Wait a few minutes before trying again. Make sure you enter the partner ID and password correctly to avoid further blocks.

7. Error Code: 437 – Encryption Error

• Meaning: An error occurred during the encryption process of the connection, possibly due to network configuration issues or a time synchronization problem between devices.
• Solution: Ensure that both devices have the correct time and time zone settings. Also, check network and firewall configurations to allow encrypted TeamViewer traffic.

8. Error Code: 503 – Service Unavailable

• Meaning: TeamViewer is unable to connect to its servers, which may be due to network problems or server maintenance.
• Solution: Check your internet connection, and ensure your firewall isn’t blocking access to TeamViewer’s servers. If issues persist, visit the official TeamViewer website or their social media channels to see if there are service disruptions.

9. Error Code: 10006 – Network Connection Error

• Meaning: The network connection between devices has been interrupted or could not be established.
• Solution: Verify the internet connections on both devices and check for any network restrictions. Restarting TeamViewer or your router may also resolve the issue.

10. Error Code: 14001 – Module Initialization Error

• Meaning: There is an issue with the installation files of TeamViewer, preventing the program from functioning properly.
• Solution: Uninstall and then reinstall TeamViewer on the affected device. Ensure you download the latest version directly from the official TeamViewer site.

If you encounter persistent technical issues with TeamViewer, it may be worthwhile to explore alternatives like AnyDesk. AnyDesk provides fast and secure connections for remote support. We recommend trying AnyDesk for a smoother and hassle-free user experience.