dhcp option 43 for unifi


Can anyone tell me what the format is to get the dhcp option to work for unifi please on a sophos XG?

I am using option 43 and have tried the ip of the unifi controller.  This worked fine on v19.5.2 but since updating to v19.5.3 it now doesnt work and the unifi controller is not seeing the door hubs being connected.

I have tried hex like this c0a8befc, 0104c0a8befc, 01:04:c0:a8:be:fc and all of them in Caps as well but nothing is working.

Edited TAGs
[edited by: Erick Jan at 7:46 AM (GMT -7) on 18 Sep 2023]