User Guide: AT-RADGate for VST-APL/VST-VRT version 1.2.0

# Updating AT-RADgate

This section explains how to update AT-RADgate.
You update the version of AT-RADgate using your VST-APL or VST-VRT. All uploaded files, including SSL certificates (server certificates) and license data, are retained during the update. However, it is recommended to back up system settings, authentication policy information, and other data before performing the update, just in case.
For information about backups, refer to Quick Tour > Backup and restore AT-RADgate.

## Upgrade to this version

Version update from AT-RADgate 1.0.0 to this version is not supported. When updating from AT-RADgate 1.0.0 to this version, update to AT-RADgate 1.1.1 first, and then update to this version. If you are using AT-RADgate 1.1.0 or later, you can update to this version.

- AT-RADgate 1.0.0 → AT-RADgate 1.1.1 → This version
- AT-RADgate 1.1.0 or later → This version

### AT-RADgate for VST-APL

Upgrade to this version on VST-APL.
For more information, refer to the VST-APL document posted on our website.

> Note

> > When updating from AT-RADgate 1.0.0 with the "Enable device authentication." checkbox selected in the "Policy Management / NAS Profile" section, both checkboxes—"Enable device authentication, in addition to user authentication." and "Enable MAC based authentication."—in the NAS Profile section are selected after the update.
> > Both checkboxes are selected to match the behavior of AT-RADgate 1.0.0 when the "Enable device authentication." checkbox is selected.

> Note

> > Updating to a previous version (version downgrade) is not supported.

### AT-RADgate for VST-VRT

Update to this version using VST-VRT.
For more information, refer to the VST-VRT document posted on our website.

> Note

> > When updating from AT-RADgate 1.0.0 with the "Enable device authentication." checkbox selected in the "Policy Management / NAS Profile" section, both checkboxes—"Enable device authentication, in addition to user authentication." and "Enable MAC based authentication."—in the NAS Profile section are selected after the update.
> > Both checkboxes are selected to match the behavior of AT-RADgate 1.0.0 when the "Enable device authentication." checkbox is selected.

> Note

> > Updating to a previous version (version downgrade) is not supported.

29 Jan 2026 17:20