License Activation error after redeploying EC2 instance

[LVidal555]

I am getting the “Failed to activate license: license activation failed: device fingerprint mismatch” repeatedly in the logs after redeploying my EC2 instance.

I understand my license was linked to my older EC2 instance, but isn’t there any way I can recover my license key so I can keep it? This instance will keep getting redeployed for updating purposes in the future.

Information on your n8n setup

• n8n version: 1.81.4
• Database: PostgreSQL
• n8n EXECUTIONS_PROCESS setting (default: own, main): default
• Running n8n via: Docker
• Operating system: Amazon Linux 2023

[Alex_Huang]

@LVidal555 you should contact the n8n admin.

[LVidal555]

Thanks for your quick reploy @Alex_Huang! Who is the n8n admin? You mean an n8n official support?

[Anthony_Brebion]

I was facing the same issue until I realized that you can simply regenerate a key from /settings/usage (=registering your community edition)

may not be ideal if your instance redeploy on a regular basis, but it at least works

if your key grants access to more features (which I am not sure) that may not work. only applies for this offer: 🎁 Unlock these three features for free on your self-hosted community edition!

[LVidal555]

Still getting the same error. Really looks like my acccount got registered with a fingerprint associated to an EC2 instance that no longer exists…

[ThinkBot]

If you deployed from an image, that could be the issue. You may want to install n8n fresh.

[LVidal555]

Well, the solution was to clear PostgreSQL database before redeploying the EC2 machine, which is quite a pain. I may have to find out where is the device fingerprint stored so I don’t lose everything every time I want to upgrade the EC2 OS.
Thank you all for the replies.

[ThinkBot]

Awesome. Glad could help. Appreciate to mark me as solution if was close to helping, else you can mark yours as solution.