John contacted the Lumion support team, reporting the issue and providing details about the problem. They were grateful for his thorough investigation and confirmed that the issue was indeed related to SecurityGuard.
Malicious software or previous "patches" can sometimes add entries to your Windows hosts file that block Lumion's servers. Search for , right-click it, and select Run as administrator Open the file located at: C:\Windows\System32\drivers\etc\hosts Look for any lines containing the word Delete those lines and the file. (Ensure it saves without a extension). 3. Configure Antivirus and Firewall Exclusions John contacted the Lumion support team, reporting the
Add an exclusion for Lumion.exe in both Windows Defender Firewall and any third-party antivirus you use (like Norton, McAfee, or Avast). Search for , right-click it, and select Run
To prevent future blocks, add the following directories to your antivirus "Exclusions" list: The main installation folder (e.g., C:\Program Files\Lumion 12.0 The user data folder (e.g., C:\Users\[YourName]\Documents\Lumion 12.0 Lumion.exe file itself. 2. Update Your Windows Firewall Configure Antivirus and Firewall Exclusions Add an exclusion