I am upgrading from Omada 3.2.10 with EAP225s to Omada 5.8.4 with EAP620HDs. Since I was jumping from such in old version, I did a fresh install (the 3.2.10 was in a VM, so I just installed 5.8.4 on a different system as I didn't need the VM anymore outside of that). I was able to add the EAP620HDs to Omada without issue and am able to get connectivity on all devices without my VLANs setup.

On the 3.2.10 setup with the EAP225s, I had three VLANs setup and it was working. I have a TL-SG1024DE switch that cannot be managed in Omada. Here's how the VLANs are configured in the switch:

VLAN ID    VLAN Name    Member Ports    Tagged Ports    Untagged Ports
1                 Default            1-24                    1-24    
102             IoT                  1-3,6-7                6-7                    1-3    
104             Guest              1-3,6-7                6-7                    1-3    
106             Production       1-24                    6-7                    1-5,8-24

My DHCP server is on ports 2&3 (LAG) and my gateway is on port 1. I only have one network; 192.168.0.1/24. Ports 6&7 are the two EAP620HDs. The TL-SG1024DE does not allow the default VLAN to be removed.

In v3.2.10 all I needed to do was add the VLAN to the SSID and it was working. However, in 5.8.4, this is not working. If I add the VLANs to the SSIDs, I cannot get any devices to get an IP address, likely cause it is not able to get to the DHCP server and I am not sure why.