SG-1100 Product Page mentions HA support
Product page for SG-1100 claims support for high-availability. This is a bullet point under the 'grows with you section'
Flexible configuration and support for multi-WAN, high availability, VPN, load balancing, reporting and monitoring, etc.
While this may be a reference to pfSense in general, customers could potentially find this misleading as it's not something we have readily been able to support