Lumion 12 Is Being Prevented From Contacting The License [updated] Page

"Lumion 12 is being prevented from contacting the license. Please contact support for assistance."

Security software often blocks the license check during startup. Lumion 12 Is Being Prevented From Contacting The License

Add the following to your antivirus "Exclusions" or "Whitelist": "Lumion 12 is being prevented from contacting the license

If none of the above steps work, try resetting your license. To do this: Lumion 12 Is Being Prevented From Contacting The License

: Some software or manual edits may have added blocks to the Windows hosts file. Notepad as Administrator C:\Windows\System32\drivers\etc\hosts Delete any lines containing the word and save the file. Whitelist Domains and Ports : Ensure your firewall allows traffic on Port 80 (HTTP) Port 443 (HTTPS) for the following essential domains: *.lumion3d.net *.lumion.com *.lumiontech.net Antivirus Exclusions : Add an exclusion for Lumion.exe and its installation folder in Windows Defender