: Look through the text for any lines containing the word lumion or act3d .
Lumion has recently updated its license authentication infrastructure.
: Double-click the file named hosts (it has no file extension). : Look through the text for any lines
Ensure your computer has a stable internet connection. Lumion needs an active internet connection to verify its license.
If you are operating on an enterprise, university, or corporate network environment, your network administrator must configure the router or proxy server to accept outbound traffic targeted at Lumion’s networks. Ensure your computer has a stable internet connection
C:\Users\[YourUserName]\Documents\Lumion 12 .
If the servers are operational, the next step is to ensure your license is actually valid. C:\Users\[YourUserName]\Documents\Lumion 12
Click on in the left pane, then click New Rule... on the right side. Choose Program and click Next.
For professionals using a , Pro License , or Flex License , this error is a notorious roadblock. It prevents Lumion from checking the validity of your subscription, effectively locking you out of saving, exporting, or even using the software.