diagram: WLAN --> router --> Switch Switch --> Raspberry Pi 4B #1 (VLAN 101, IP = 172.10.20.5) --> Raspberry Pi 4B #1 (VLAN 105, IP = 172.10.20.6) same subnet Router = fpSense Community edition...

In addition: Each VLAN (101 and 105) has all ports selected as untagged. I assume I dont need tagged ports because I only have 1 switch and 1 router.

switch = TLSG2428P firmware V4.0.6 build 20230602 Rel 73473 I have 2 computers which I added to 2 different VLANs. I am still able to ping between these computers, meaning, the VLANs somehow are not...