@EricPerl I set up a test case where two Wi-Fi devices were connected exactly the same way as in your negative test and, indeed, the traffic between those devices was not block. It looks as if such...

@EricPerl You've done a lot of work, but I would leave the Guest network alone and use it only for what it has been designed for. Try something different. 1. To block Wi-Fi intra-VLAN traffic, create...

@Winho Are you saying that you have Zabbix on the WAN side? I have never tried that. I don't know what needs to be done to make it work that way. I run Zabbix on my LAN.

@Winho Have you actually connected Zabbix to those devices? If connected, even generic templates should show some data. Also, it takes some time for Zabbix to finish the device discovery process.

@MaxPowers_ Looking at your CLI, I wonder how you got this. no switchport general allowed vlan 1 no switchport turns a L2 port into a L3 port, a routed port. Routed ports are used, as the name...

@SasoC If the DHCP server is configured on the switch and running, you probably just need to configure the access ports correctly. Have each access port untagged in a single VLAN and its PVID set to...