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Ensure the Lumion installer and executable are allowed through your Firewall. Alternative Fix: Lumion Updater
. Once finished, save the file (Ctrl+S) and close Notepad. 4. Add Antivirus Exclusions
: 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
This is a common issue for users who have either manually modified their network settings or are using security software that has locked these entries for protection. Why This Happens
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. Ensure the Lumion installer and executable are allowed
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
Add an exclusion for the Lumion folder (usually C:\Program Files\Lumion 2023 ) in Windows Security or your third-party antivirus. Why This Happens Lumion needs to communicate with
Even after fixing the hosts file, overzealous antivirus software may re-add these blocks or prevent the software from launching.
