Cause: The .lic file was generated for a different machine (e.g., you used a request from Server A but imported on Server B).
Fix: Ensure the request and license certificate belong to the exact same installation. Use acronis_mms_cli --machine-id to verify.
A critical point of confusion in offline activation lies in the distinction between Perpetual licenses and Subscription licenses. offline activation acronis cyber protect 15
| Feature | Offline Activation | Online Activation | License Server (Offline) | | :--- | :--- | :--- | :--- | | Internet required on target | No | Yes | No (for agents) | | Suitable for air-gapped networks | ✅ Yes | ❌ No | ✅ Yes | | Manual effort per machine | High | Low | Medium (setup once) | | Central license tracking | No (per machine) | Yes (via cloud) | Yes (internal) | | Renewal process | Manual (re-export/import) | Automatic | Manual for server only | Cause: The
Recommendation: For 1–10 isolated servers → Manual offline activation (Part 3). For 11+ servers → Offline License Server (Part 5). | Feature | Offline Activation | Online Activation