I have a Deco M5, a Ubiquiti router, a QNAP server, an internet phone, an IP camera, a wired computer, and multiple wireless devices (laptops, a printer, and phones, primarily).

Right now, the connection order is:

Modem is connected to the router.

 -  Devices connected to the router: M5, IP camera, QNAP server, wired computer.

 - Devices connected wirelessly to M5: Printer, various devices.

 - The ethernet port on the M5 is connected to the VOIP phone.

Problem:

The wireless devices can't see the server.

The wired computer can't see the printer.

Is there a different way to hook this up so that everybody can see everybody?

Maybe Modem  to M5 to router? Or would this slow things down?