Watchguard XTM 2 Series, XTM 3 Series, XTM 5 Series, XTM 8 Series – Fireware XTM OS 11.5.1 – CSP3 Build # 334971
11.5.1 – CSP3 Build # 334971 Resolves the following issues:
BUG64440: Static Arp entries are lost in Firecluster Active / Active when external interfaces goes down and coems backup
BUG64898: Updated sdk from AVG to prevent scand crashing on archive file scanning
BUG64201, BUG64763: configuration changes not taking effect until reboot (potential fix).
BUG65105: when using 1 to 1 Nat IP ranges configuration saves may causes packet loss, connection count increase and one way BOVPN tunnel traffic.
You can request 11.5.1 – CSP3 Build # 334971 from Watchguard Support by logging a support case online, they should then be able to provide an ftp download link and appropriate credentials.
Please note that Watchguard CSP releases are cumulative so you should only need to apply the latest to ensure that you also have any previous fixes.