Lumion 12 Is Being Prevented From Contacting The License Server ❲2025❳

A corrupted or modified hosts file can redirect license server requests to nowhere.

If you use paid antivirus:

Pro tip: Temporarily disable the antivirus completely for 5 minutes. If Lumion works, you know the AV is the problem. Permanently add Lumion to the exclusions list. A corrupted or modified hosts file can redirect

Open Command Prompt as Administrator (Right-click Start > Terminal (Admin)). Pro tip: Temporarily disable the antivirus completely for

Type the following commands one by one, pressing Enter after each: After these run, restart your PC completely

ipconfig /flushdns
nbtstat -r
netsh int ip reset
netsh winsock reset

After these run, restart your PC completely. This resets your computer’s entire network stack to factory settings.