Fortigate 100D 5.6
I have LAN (VLAN1) and VOICE (VLAN2). VLAN1 is assigned to ports 1-14. Vlan2 is assigned to ports 15-16.
VLAN1: 192.168.1.1/24 DHCP Enabled 192.168.1.80 - 192.168.1.254
VLAN2: 192.168.0.1/24 DHCP Enabled 192.168.0.50 - 192.168.0.254
Port 15 is mirrored from Port 16. Nothing connected currently.
Port 16 is connected to it's own switch and devices.
Port 1 is connected to it's own switch and devices.
They are only linked by the firewall. The switches are not cross connected.
Somehow, PC's on VLAN1 have pulled an IP from VLAN2. I can't get them to drop this IP and it still works, as in they can traverse the network and get to the internet. I have tried unplugging their cables, Windows Troubleshoot and Repair, ip config /release and then renewing. Nothing works. I can tone down the connection and they are plugged into VLAN1.
Am I missing something? I should note, this is a fresh Fortigate 100D as the previous one bit the dust and had to be replaced.