FSSO not able to detect user after ip address changed

[ytlpsnet]

Let's say 1 user ABC has connected wireless (192.168.1.100) and wired (172.16.1.100), at this point no issue for FSSO, but once the user disconnected from wired, and use wireless to continue, then FSSO will not able detect user ABC. (it happens randomly, sometime no issue or sometime happened after 1 or 2 hour) Even i waited for 5 minutes but still nothing happen, anything that i can change to prevent this? The only method now i have to lock my laptop/pc then login again, after FSSO will immediate working...the FSSO agent installed on a joined domain server (not AD server), pull user info from AD server and the FSSO setting all default included the interval time settings.

[Ashishdeep]

IP address change verify interval (seconds):
FSSO periodically checks the IP addresses of logged-in users and updates the FortiGate unit when user IP addresses change.
This timer is especially important in DHCP environments or dynamic environments when mobile users may change their IP address

More details refer to https://kb.fortinet.com/kb/documentLink.do?externalID=FD3