Hi @Stefan1711 

Make sure LAN1 port(of the ER7212PC) has VLAN 100, 200, 300,400 tagged. (On Settings->LAN, Edit the LAN and make sure it has the LAN1 port ticked)

Then on the SSID settings, make sure the SSID has correct VLAN ID

Hi  @Stefan1711 

You will need to create the VLAN interfaces one by one. So create VLAN100 first, then on the LAN settings add another one as VLAN200, and so on. 

How to configure Multi-Networks & Multi-SSIDs on Omada SDN Controller

Hi  @Stefan1711 

1. By default, if you already choose the port on LAN configuration page, it has the "tagged" profile automatically;

You don't need to change the port profile, since the port will be connected to the EAP directly. You don't have switch between them. 

2. We are going to release a beta firmware that supports modify LAN port profile. 

Hi  @Stefan1711 

1. By default, if you already choose the port on LAN configuration page, it has the "tagged" profile automatically;

You don't need to change the port profile, since the port will be connected to the EAP directly. You don't have switch between them. 

2. We are going to release a beta firmware that supports modify LAN port PVID.