I bought a set of three Deco BE65 to replace my old WiFi router. When I take a first and try to connect to the internet modem, it starts flashing red after the setup.
So flashing red is supposed to indicate that it is a satellite that can't get contact with the primary unit. What does that mean when it is the first one I'm starting up? Have I missed something?

So the only thing I have done so far is unpacking, install the app on my phone and follow the instructions.

The modem works fine otherwise.