: Antivirus or firewall programs adding "protective" entries to the hosts file.
Select the file named hosts (it will not have an extension). 3. Remove Lumion Entries
: If you don't see any files, change the dropdown menu in the bottom-right corner from "Text Documents ( .txt)" to **"All Files ( .*)"**. lumion 2023 host file entries detected exclusive
In Notepad, go to and navigate to the following path: C:\Windows\System32\drivers\etc\
To resolve this, you must remove any Lumion-related lines from your Windows hosts file. 1. Open Notepad as Administrator You cannot edit the hosts file with standard permissions. Click the button and type Notepad . Right-click on Notepad and select Run as administrator . 2. Locate the Hosts File : Antivirus or firewall programs adding "protective" entries
Even after fixing the hosts file, overzealous antivirus software may re-add these blocks or prevent the software from launching.
. Once finished, save the file (Ctrl+S) and close Notepad. 4. Add Antivirus Exclusions Remove Lumion Entries : If you don't see
Lumion needs to communicate with its activation servers to verify your license. If the Windows hosts file contains lines that redirect Lumion-related domains (like lumion3d.net ) to a local address (like 127.0.0.1 ), the software cannot "phone home" and will trigger this error. This can be caused by: : Previous attempts to block Lumion traffic.