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LAN Zoo License Validation: Return Validations

Product: Zoo
Summary: What to do when returning a license validation fails

If you got to this page, you're likely trying to remove a license from LAN Zoo and got this error message:

Your license cannot be deleted because the McNeel license server at could not be reached

This message is shown when LAN Zoo is able to access parts of the Internet, but cannot access McNeel's license servers at

To Resolve The Error:

  1. Verify that a local or network firewall is not blocking port 443 access to the server
  2. Try to remove the license again.

If License Removal Still Fails:

Please contact McNeel support at

zoo/return-validation.txt · Last modified: 2024/05/07 by brian