@Stephen26 You cant, only thing to do is change main Deco to Access point mode to stop double NAT.

@HeavyBrew Yes, all Decos work together.

@ugscavcg assuming you have FTTC broadband and not full fibre? What settings have you used so far? Have you tried the Plusnet hub in router mode and changing the Deco to access point mode? Maybe try...

@David-TP Perfect, thank you.

@David-TP Hi, is Eco mode available in access point mode? Thanks Kevin

Great, good luck with getting the DV sorted out. The BT community forum is also a good place to post for BT issues with lots of helpful people there too.