[Thorpuse]

I would suggest upgrading to 7.5.55. I had load issues with 7.5.50.

Also, PM me if the majority of your connections are VPN connections. I've seen some odd activity with Edge boxes and VPNs on the 7.5.x firmware, and if someone else can corroborate it then I'll log a bug with CP about it.

While the docs say 8000 connections, the reality is much, much less. I would say the stress point kicks in at about 1500-2000 connections, depending on the mature of the traffic and the protections enabled. These are designed for branch offices, with a recommended maximum number of users at around the 50-75 user mark. Anything higher and you really should use a UTM-1 appliance.