Ensure Lumion.exe is allowed through the Windows Defender Firewall.
The error message "Lumion 12 is being prevented from contacting the license server" can be frustrating, but it's often resolvable with some basic troubleshooting steps. By following the guides outlined in this article, you should be able to identify and resolve the issue. If you're still experiencing problems, you may want to contact Lumion's support team for further assistance. Remember to always ensure that your software and license server settings are up-to-date to prevent similar issues in the future.
Right-click the Windows Start button and select or Command Prompt (Admin) . Type the following command exactly and hit Enter: ipconfig /flushdns Use code with caution.
temporarily to see if the software connects. Ensure Lumion
Click on in the left pane, then click New Rule... on the right side. Choose Program and click Next.
Turn off any active VPN software, as they frequently reroute traffic through nodes that Lumion's license servers block for security reasons.
Corporate network configurations or private VPN tunnels can mask or corrupt the routing data needed for verification. Step-by-Step Solutions to Resolve the Error If you're still experiencing problems, you may want
When you launch Lumion 12, the software performs a silent handshake with Act-license (Lumion’s licensing partner). Here is the flow:
: Aggressive real-time scanning flagging the licensing module as a false positive.
Fortunately, this is almost always a network configuration issue rather than a broken software installation. Here is a comprehensive guide to diagnosing and fixing the issue so you can get back to rendering. Root Causes of the Connection Failure Type the following command exactly and hit Enter:
If you'd like to dive deeper into a specific area, I can help you:
Most users find that cleaning the or updating the Firewall rules fixes the issue immediately. If you want to troubleshoot this further, let me know:
Some software allows connecting through different license servers. Check if Lumion provides alternative servers or ports that can be used.