Cannot get OPNsense to provide IP address to VLAN3

Hi. Thank you for all of your videos and tutorials. They have been extremely helpful to a DIY home user, like myself. I am trying to set-up a Guest Wifi and have ventured in the world of VLANs for the first time. In my set-up, I cannot get the OPNsense to provide an IP address on VLAN3.

Here is my setup:
[OPNsense 25.1-amd64] LAN em4 <—> port 1 [Netgear GS308 Switch] port 7 <—> port 4 [Netgear R7000 Access Point running DD-WRT]

On the Netgear GS308 Switch,
VLAN3 is Tagged on Port 1 and Tagged on Port 7
VLAN1 is Untagged on Port 1 and Tagged on Port 7

On the R7000 Access Point running DD-WRT,
VLAN3 is Tagged on Port 4
VLAN1 is Tagged on Port 4

OPNSense Interface Assignments

VLAN3 Interface

VLAN3 DHCP Enabled

Netgear GS308 VLAN1 Settings

Netgear GS308 VLAN3 Settings

R7000 VLAN settings

I just switched the virtual wireless interface from 2.4GHz to 5.0 GHz and everything works!

I’m glad you were able to get it to work!