To recap the workflow:
When your subscription expires, you must manually repeat the download/apply process. There is no "auto-renew" over the air. No Direct Connectivity: vnc offline license file
While often free, a viewer must also be licensed offline if it is connecting to a server that uses a per-user subscription. Applying an offline license to RealVNC Connect To recap the workflow: When your subscription expires,
To implement an offline license, you generally follow a "Sneakernet" workflow: Generate Identifier: Applying an offline license to RealVNC Connect To
file depending on the version) is a digitally signed token that contains your entitlement data. Unlike a standard cloud-based login, this file acts as a local "source of truth" for the VNC Server. Node-locked vs. Portable: Most offline licenses are tied to a specific Machine ID
| Error Code | Message | Solution | | :--- | :--- | :--- | | | "Invalid request file format" | The request file was corrupted during transfer. Use a USB drive formatted as FAT32 or NTFS, not exFAT. | | E-LIC-015 | "License already bound to another machine" | You attempted to reuse an offline license file. Offline licenses are node-locked. Generate a new request and a new response. | | E-LIC-022 | "Hardware ID mismatch" | Something changed on the target PC (CPU, motherboard, or MAC address). Re-generate the request from the current state and re-activate. | | E-LIC-088 | "Time skew detected" | The system clock on the offline PC is years off. Sync the clock via NTP (if possible) or set it manually within a few minutes of real time. | | No error, but offline | License shows "Trial" after applying file | You applied the wrong file type. Ensure you downloaded the "Response" file, not the "Request" file. |
For developers working on projects that involve VNC integration in offline or low-connectivity environments, having an offline license file is crucial for testing and debugging.