Lumion Invalid License Fix Info

The Ultimate Guide to Fixing the "Invalid License" Error in Lumion (2024 Guide)

Experiencing the "Invalid License" pop-up in Lumion? Here is every possible fix, from simple reboots to deep system cleans.

2. Reset Your Local License (The "Nuclear" Option)

Lumion stores your license info locally. Deleting this forces the software to re-download a fresh token. lumion invalid license fix

Summary: Quick Checklist

| Symptom | Most Likely Fix | | :--- | :--- | | Just updated Windows | Clear Local License Cache (Step 3) | | Just upgraded CPU/Motherboard | Deactivate old PC / Reset Activations (Step 4) | | Just installed Antivirus | Whitelist Lumion folders (Step 5) | | Used to have a cracked version | Revert Hosts file changes (Step 6) | | Error happens every 2 weeks | Check for Hardware ID conflict / contact Support (Step 8) | | Student version suddenly broke | Your semester ended; buy a subscription. | The Ultimate Guide to Fixing the "Invalid License"

Conclusion

2. Check internet connection & firewall

Lumion needs to validate the license online periodically. Go to Windows Security → Firewall & network

• Go to Windows Security → Firewall & network protection → Allow an app through firewall.
• Add Lumion.exe and Lumion License Server.exe (if used).

: Ensure your computer’s date and time are set to "Automatic." If your system time differs significantly from the server time, the security certificate validation will fail, resulting in a license error. 3. Advanced Resolution Renewing Expired Licenses

If you recently moved to a new PC, the license might still be "active" on the old one. Log into your Lumion Account. Ensure the license isn't locked to another machine. Contact Lumion Support if the seat remains stuck. 💡 Key Pro-Tip