This is an automated archive.

The original was posted on /r/ubiquiti by /u/jtally7 on 2023-08-07 20:41:41+00:00.

We have a flat network with a Fortigate FW as the router/gateway and a UniFi 24p PoE switch. No VLANs, and all ports have the same configuration.

With the Fortigate plugged into Port1 on the switch, everything works as expected. With the Fortigate plugged into any other port on the switch, we get a ton of dropped packets from clients connected to the switch.

Has anyone experienced anything like this? I am kind of at a loss at this point… we did try another switch from another site that we factory reset and readopted but it experienced the same thing. We also noticed this at other sites that were recently upgraded from USGs to Fortigates.