Netgear Nighthawk R7000 with HG612

[#1]

I seem to be having issues getting connected using a Netgear Nighthawk (in AP Mode) with a BT Openreach HG612 3B?

I believe I have everything plugged in fine, so DSL cable pluggged to the HG612, ethernet cable from LAN 1 on the HG612 to the Nighthawk Yellow WAN port.

If I use the Plusnet Onehub as the modem (with wireless turned off) then no problem, everything works fine. 

So couple of questions:

1) so why does the HG612 not work in place of the Onehub?

and/or

2) Is the modem on the Onehub any worse than the HG612?  Shall I just mug the HG612 off and just stick with the Onehub as the modem as this works?

Thanks for your help

[#2]

The Hub one is a modem/router and will have your authentication details configured. The hg612 is purely a modem and therefore you will need to change the R7000 wan configuration to PPPoE and input your username and password

[#3]

Using the HG612 is a more sensible solution. if you are having trouble setting it up then do a factory reset on the Netgear by pushing a paperclip or similar into the factory reset hole. Hold the switch closed for around 25 seconds. Then start setting it up from scratch using the settings here. https://www.plus.net/help/broadband/broadband-connection-settings/

[#4]

Whilst the AP option will work on the Hub 1, the R7000 will need to be set to router mode and the PN username and password will need to be used in it - as already mentioned, the Hub 1 does this for you, but the HG612 will not.