Errr yeah I get that mate but even when set to PPPoA which is presumably what it would request it does not connect at all.
Whether this router has a preference for PPPoE I don't know but its clear that noone here has seen this behaviour before.
I'll drop Zen support a quick e-mail to ask them to check the line profile.
Virgin (ADSL) => Namesco => Newnet => O2 => Plusnet => Zen => Newnet => Zen Lite 8000
Note: I don't lay turf for anyone. astro or otherwise, all views and opinions expressed are my own based on experience.