STAS live users showing on the other office's firewall.

Hello Sophos Masters,

I've setup STAS on our 2 offices in different locations.

Office 1: 192.168.32.0/22 - Sophos XG
Office 2: 192.168.20.0/22 - Sophos XG
Office 3: 192.168.8.0/22  - Main Office | Active Directory location | Cyberoam

All 3 offices are connected via site-site vpn.

I've downloaded Sophos Transparent Authentication Suite (STAS) from Office 1 and installed it in our active directory.



I've enabled stas on both office 1 and office 2. The problem is Live users from office 2 are showing on the office 1 firewall but can't be viewed from the office 2 firewall.

Office1 Firewall:

Office2 firewall:



On which part did I do wrong, or do I missed with something?