: Automated activation tools inject blocklists into the Windows hosts file to stop the software from calling home.

Several issues can interrupt this process.

This message is generated by a patching tool, not by Lumion itself. Here’s a breakdown of what it tells you:

UX & Notifications

If you are trying to use a legitimate version of the software, you must remove these unauthorized entries. Here is how to fix the issue: Method 1: Editing the Windows Host File Manually

: In Notepad, navigate to C:\Windows\System32\drivers\etc\ . Ensure you change the file type filter from .txt to All Files to see the hosts file.

When you see “Host file entries detected – patched,” Lumion is telling you that it found specific lines of code inside that file which have been added to . In developer terms, the software is detecting that it has been “patched” or “cracked.”

Security software and modern applications use several methods to detect patched host files:

Lumion, or during a specific rendering task?

: Scroll down to the Exclusions section and click Add or remove exclusions .

Step-by-Step Guide to Fix the "Host File Entries Detected" Issue

Press , type cmd , and press Ctrl + Shift + Enter to open the Command Prompt as admin. Type ipconfig /flushdns and press Enter . Type netsh int ip reset and press Enter . Restart your computer to apply the network reset. Step 3: Check Firewall Rules

For professionals and students, utilizing the official or Student Licenses is the recommended path to ensure software stability, security, and legal compliance.

127.0.0.1 backup.lumion3d.net 127.0.0.1 license.lumion3d.net

: The hosts file has been edited to prevent Lumion from communicating with lumion3d.net or related domains. Patched Software Presence

If the host file is clean but the error persists, consider these secondary causes identified by Lumion support :

Make sure no leftover crack tools or firewall rules are interfering with your paid license. For those seeking cracks: The 2023 version has hardened protection – public “fixes” currently trigger this detection and may carry malware. Proceed at your own risk.

Have you found a working method for Lumion 2023.3? Share your experience in the comments below (but remember: no direct links to cracks).