Both streamers are connected to my network, the Electroconpaniet APP shows Roon as one of the selections I can choose so as Tidal, Qobuz, Internet radio etc.
In the audio section of my Roon account the Electroconpaniet is listed to enable or disable.
Hmm, I click on enable and nothing, the screen on the Electroconpaniet displays Roon.
I then disconnect the old server I then loose Roon, the screen reverts back to searching.
Because you need a server to run Roon your new device is not a Roon server it’s an endpoint. So you need your old server active to use Roon and play to it.