When using Veeam Backup & Replication, you may encounter the error:
“Unhandled exception was thrown during licensing process.”
This error is often caused by a failure in authentication between Veeam and the vCenter Server, typically due to outdated or incorrect credentials.
Steps to Resolve the Licensing Exception
1. Rescan the vCenter Server in Veeam
Start by rescanning the vCenter Server from within the Veeam console.
If the scan fails with a login or authentication error, this confirms the credentials being used are no longer valid or accepted.
2. Verify Credentials Manually
Use a web browser to log in to the vCenter Server using the same account and password configured in Veeam.
- If the login fails, this indicates an issue with the credentials—such as an expired password or account lockout.
3. Update or Reset the Password
If the credentials are invalid:
- Option 1: Open the Credential Manager in the Veeam console (under Main Menu > Credentials & Passwords) and update the stored credentials for the vCenter Server.
- Option 2: If unsure about the password or experiencing login failure in the browser, reset the vCenter account password and then update it in both Veeam and your login test.
4. Confirm Browser Access
After updating or resetting the password, test logging in to the vCenter Server via web browser to ensure the account is working properly.
5. Re-scan the vCenter Server in Veeam
Finally, return to Veeam and perform another rescan of the vCenter Server.
- If the credentials are now valid, the scan should be completed successfully, and the licensing process will resume normally.
The “Unhandled exception was thrown during licensing process” error usually stems from credential issues. By verifying access manually and updating stored credentials in Veeam’s Credential Manager, you can quickly resolve the error and restore proper licensing and inventory operations.
Please feel free to reach out to our support team at support@managecast.com for assistance.