Problem was on the Pfsense side -> misconfiguration while copying Rules in Firewall -> Rules to the different interfaces. End of the story.

So I have replaced the tplink switch and omada with a Cisco switch, with 2 vlans + trunk setup to the pfsense ... And I get the exact same behavior for VLAN 20. So I'll have to check what's wrong on...

Hello. With the setup below, I'm trying to have multiple VLANs going through a single network cable between my tplink switch and my pfsense. I had no problem doing so between my cisco switch and my...