I am trying to connect my tp-link AC1200 vr400 in bridge mode to pass a PPPoE connection to my firewall which is located behind the tp-link.

With the configuration I have done so far, I have not managed to achieve it.

What I have done is the following:

In the Advanced -> Network tab, I initially set up an internet connection in PPPoE mode with vlanID 385 and the username and password that I obtained from my provider, just to check that this configuration is working so that I can use it on the interface of my firewall.

Then I delete all internet connections and add a new one with VDSL enabled, VLANID 385, and set to bridge mode.

That's all I have done on the tp-link.

I connect the lan/wan port of the tp-link to the firewall port. I configure the firewall port to use PPPoE, vlanID 385, username, and password, but I cannot establish a connection.

Is there any other configuration that I need to do on the tp-link?