We have Fortigate on HA Active-Passive Cluster.
Whenever we restart the FortiGate the APs goes down . Secondary firewall comes up after restart later 5 min the primary firewall takes the Master role and up.
Firewall restart process takes only maximum of 5min. But the Ap's connected to it takes 40min to come online. APs are getting IP and i can able to access the portal and checked the state it says discovered the Access controller but no SSID or not up status in Fortigate.
I captured some traffic and checked that APs are not sending client Hello request to FG and only sending & receiving Keep Alive Control Data 5247 .
After 30-35 Min it sends client hello request then immediately joins the Fortigate.
After sometime i found the workout , we need to restart the AP after the restarting the firewall so that we don' have wait for 30-40 min to join. After restart AP immediately joins the Fortigate.
I have read on internet that FortiAP can goes to configurator mode it will exit after 30min automatically , i doubt that my APs are going Configurator mode after restarting the firewall.
Both Firewall & Forti AP are in same Firmware 7.2 , its not firmware related .
Am not sure why this happens , can some one help me on this ? FortiAP FortiGate FortiADC @lpetit_FTNT