@XoomBetaBrava . Did you get the bridge mode working? I should have included instructions before.
Following are instructions to put Archer VR1600 in bridge mode.
To put Archer in bridge mode, basically delete the DSL connection with vlan id 2 and add new connection.
https://community.tpg.com.au/t5/Modems-and-Devices/Archer-vr1600v-bridge-mode-Totally-confused/m-p/1...
You need the VR1600 for the physical connection. You can experiment by removing the VLAN setting from VR1600 and adding it to the UDM. The VR1600 might not accept having a VLAN field in the ethernet frame on a LAN port.
