If you are using a legitimate license and still see this error, ensure you have added an exclusion for Lumion.exe in your and any third-party antivirus software.

Delete these specific lines. Alternatively, if

: Save the file ( Ctrl + S ) and restart Lumion. Why This Happens

The hosts file is a plain text file used by an operating system (Windows, macOS, Linux) to map hostnames to IP addresses. It acts as a local DNS resolver.

For more information on Lumion 2023 and related topics, check out the following resources: