Unable to update an Airwall Gateway from v1.x to v2.x

To upgrade an Airwall Gateway running v1.x series, your Conductor must be on v2.x or later.

If you attempt to update, you may get an error message similar to the following: 

Conductor must be version 2.0.0 or higher for this firmware to be installed.

A v1.x Conductor cannot configure or manage a v2.x Airwall Gateway.

Solution

To resolve this issue:
  1. Upgrade your Conductor to the latest stable 2.x release.
  2. If any of your Airwall Gateways are running in Transparent mode, set them to Protected mode.
    Note: Do not upgrade an Airwall Gateway while it is in Transparent mode. If a v1.x Airwall Gateway is running in Transparent mode, it might not correctly record the firmware version of its Conductor.
  3. Update the Airwall Gateways to the 2.x release.
  4. If needed, set any Airwall Gateways back to Transparent mode.