Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.
https://community.sophos.com/sophos-xg-firewall/b/blog/posts/sophos-firewall-os-v19-is-now-available
Release Notes: docs.sophos.com/.../index.html
"Old" V18.5 MR3 Thread: https://community.sophos.com/sophos-xg-firewall/b/blog/posts/sophos-firewall-v18-5-mr3-is-now-available
The V19.0 EAP Community: https://community.sophos.com/sophos-xg-firewall/sfos-v19-early-access-program/
About the Upgrade Issues:
See Known Issue List in Release Note
s: 
Upgraded from EAP2 to GA and have a strange error: it says my GW is down, but everything seems to be getting through:
The IP address of the gateway responds to ping, and traffic basically just gets through, but I've got a big red dot here and in the Gateway Detail page, and in the Control Center I've got a red interfaces icon. I have an SD_WAN profile set up with no SD_WAN routes, just to monitor the QoS, and the Latency, Jitter, and Packet Loss, and all of these indicators are normal.
I also note in the System Logs that Interface 2 (WAN) went down and up twice within about 10 seconds about 10 minutes after I'd rebooted with the GA, which was about 20 minutes ago.
Upgraded from EAP2 to GA and have a strange error: it says my GW is down, but everything seems to be getting through:
The IP address of the gateway responds to ping, and traffic basically just gets through, but I've got a big red dot here and in the Gateway Detail page, and in the Control Center I've got a red interfaces icon. I have an SD_WAN profile set up with no SD_WAN routes, just to monitor the QoS, and the Latency, Jitter, and Packet Loss, and all of these indicators are normal.
I also note in the System Logs that Interface 2 (WAN) went down and up twice within about 10 seconds about 10 minutes after I'd rebooted with the GA, which was about 20 minutes ago.
