Hello,
I don't know why but only VLAN Id between 2-50 are working and I don't know why. I configured the interfaces as access mode and only 2-50 are working. For example VLAN 501,1000 is not working.
I have: Switch SG220-26 26-Port Gigabit Smart





Port 26 is connected to Fortigate in port2:

VLAN 1000 is not working, when I assigned to this interface VLANS 18 and 20 is working but not 1000, not 501 and in any other switches - working. Only in this switch it is not working.Please help