Do I need all licenses (UTM licenses as an example) twice when using Device HA Pro?
No, if two firewalls are used with Device HA Pro, only one license is required. The passive firewall takes over the licensing of the master when the active firewall should fail.
What can go wrong? Why can’t see the correct license status from the myzyxel.com server?
On the Device-HA Pro setting, there is a function “Serial number of the licensed device for license synchronization”. You should enter the device’s S/N with licenses. So you can transfer all of the licenses to the “Active” device, and enter this device’s S/N in the frame.
Note: The default bundled one-year Gold Security Pack license of ATP gateways is non-transferable. For Device HA deployment, please contact Zyxel support in your country/region to help you transfer licenses.
After licenses are transferred to the primary device, the secondary device has a Trial license only. You can log in to myZyxel.com to check the license status of each device. Here License Service of the Second device:
How to contact Support Team for License Transfer, please check here: How to contact Support Team?
How to Setup Device HA you can find here: Device HA Pro Setup
Setup Assistance, you´re looking for assisted configuration by our Professional Services Team? Please check here: Zyxel ConfigService Security