@NitroGeorge Configure Deco mesh to run in Access Point mode, and instead of two networks you'll have one (combined). Then, you can connect printer to either router, or Deco - both diagrams can do....

@PoloNet Operating Mode is global setting that applies to all units in Deco mesh.

@PoloNet No, you do not need to. Just follow document I gave you link to.

@retired_user I think you should just try. The whole point of that utility is to update M9 Plus V2 with firmware 1.2 to newer firmware.

@PoloNet You can do that after switching Deco mesh to run in Access Point mode. See Switching a Deco to Access Point (AP) Mode and also General questions about Ethernet Backhaul feature on your Deco

Jorge67 wrote how do I install deco directly as an access point mode?. It is not possible to configure it as an AP from the app. @Jorge67 Switching a Deco to Access Point (AP) Mode