New Thread to cover changes / feedback / experiences.
"Old" MR3 Thread: https://community.sophos.com/xg-firewall/f/discussions/123403/xg-firewall-v18-mr-3-feedback-and-experiences
Release Notes: https://community.sophos.com/xg-firewall/b/blog/posts/xg-firewall-v18-mr4-is-now-available
For XG Appliances, running in Active-Passive, we can accelerate more performance with the new fastpath technology. You should see more performance throughput on XGs running in Active-Passive.
The HA Setup…
After upgrading to v18.04 MR-4 all XFRM/tunnel interfaces used for IPSec Site-to-Site VPNs are gone/missing/ no longer listed at CONFIGURE > Network > Interfaces
Can you show us a screenshot of your WAN Interface? Is it a VLAN Interface on WAN and not expanded?
Gosh, I've missed it. Thanks for the hint!