No idea, sorry. As I said, I ended up returning it and getting an Archer C5, which fitted my needs better.

@ovo Yes, I got a solution from TP-Link's support. For these settings to be available you need to login as admin. A different user and password is required for this. username: administrator password:...

I have been trying to configure the Archer xr500v GPON router to replace the ONT provided by the ISP (Movistar) and use with another router (possibly in bridge mode). But I am unable to achieve any...