I've been haunted by the issue as describe in the topic.
My company has recently migrated all of our vm servers to cloud. This includes our vSZ as well.
vSZ is behind a VM fortigate firewall .
Our APs are behind a switch and sophos xg firewall.
Both firewalls has an ipsec tunnel linked.
DHCP server was set on the core switch .
When endpoint devices connected to the SSID of the AP, it has no problem getting IP from the DHCP servers in less than a few seconds. However, it'll show no internet for 4-5 mins.
After sometime, it'll suddenly be with internet.
Although devices connected with the ssid retries connection, it'll immediately have internet connection.
Only for new devices, it'll have a 4-5mins issue without internet .
Anything i need to set on AP side or vSZ side ?