GL-MT1300 Vlan for including LAN ports in guest network?

I’m trying to use a vlan with both the LAN ports tagged so they can be added to the guest network.
I’ve created the vlan eth0.5 and tagged the 2 physical lan ports. I then added this vlan to the guest interface, hoping it would bridge the two together, but so far it doesn’t work.
Any ideas as to what extra steps I need to perform?


Pls post the changes you made and I can call developer to have a check quickly.