Roon web os has nothing to do with Innuos devices so it wont find anything it’s for devices running RoonOS which is the Nucleus or a nuc running ROCK. Innuos settings control your Innuos, Roon Remote look after Roons settings. Did you enable it as both player and core in the Innuos settings and is a DAC connected to it and powered on. If no DAC connected you want see it as an audio device. It doesn’t use Squeezebox unless your using their experimental mode which is unsupported by Roon.