Before diving into the offline process, you must understand the architecture of Acronis Cyber Protect 15 licensing.
The product uses two primary components:
When you purchase a license, you receive a serial key (e.g., ABX-XXXX-XXXX). In online mode, the Management Server contacts Acronis’ activation servers to validate the key, download the license certificate, and bind it to your machine’s hardware ID.
In offline mode, you bypass the live validation. Instead, you generate a request on the isolated machine, move that request to an internet-connected computer, download a certificate, and then import that certificate back to the isolated machine. offline activation acronis cyber protect 15
Critical Note: Offline activation is only available for Perpetual licenses or yearly subscriptions that specifically support offline usage. Some trial or promotional licenses do not permit offline activation.
This is the most common scenario. Follow these steps exactly.
Agents (Windows/Linux) communicate with the License Server.
If agents cannot reach the License Server due to network isolation: Before diving into the offline process, you must
Acronis Cyber Protect 15 requires a license to enable backup, antimalware, and disaster recovery features.
In offline environments, standard online activation fails. Instead, an offline activation request/response method is used via the Acronis License Server.
Verification: Run acronis_mms_cli --status in command line. It should show License: Activated (Offline).
On the offline Linux machine:
sudo acronis_register --offline-request --serial <YOUR_SERIAL> --output /tmp/request.req
Transfer request.req to an online machine, visit the Acronis offline portal, upload the file, download the license .lic, then back to the Linux machine:
sudo acronis_register --offline-import --input /tmp/license.lic
Verify with:
sudo acronis_register --status