FortiGuard update-server-location setting
The FortiGuard update-server-location default setting is different between hardware platforms and VMs. On hardware platforms, the default is any. On VMs, the default is usa.
On VMs, after upgrading from 5.6.3 or earlier to 5.6.4 or later (including 6.0.0 or later), update-server-location is set to usa.
If necessary, set update-server-location to use the nearest or low-latency FDS servers.
To set FortiGuard update-server-location:
config system fortiguard
set update-server-location [usa|any]
end