As long as you have these basics right it should connect up just fine:
|Broadband username or login email@example.com|
|Connection type or encapsulation||'PPPoA' or 'PPP over ATM'|
|Password||The password you use to log in to the Member Centre|
|Virtual Path Identifier (VPI)||0|
|Virtual Channel Identifier (VCI)||38|
'VC Based' or 'VCMUX' or 'VC-Multiplexing'
I'd try a factory reset if you've got all that set right but still can't connect with it.
I'll stick with the hubone for now, seems to be doing a better job than my old plusnet router did anyway.
Since you've got a hub one I assume you're on a Fibre(FTTC) connection. @adamwalker 's settings are for ADSL . You need to select PlusNet_VDSL from the ISP list in the connection settings and then enter your username and password as in Adam's settings