Spotify App Disappeared Denon X4000

Denon avr x4000 problems

Denon X4000 Specs

Denon x4000 specs
I just bought a home with what seems like a great home audio setup - Denon receiver, amp, subwoofers, and speakers everywhere.. The Denon receiver is a Denon AVR x4000 and I would like to connect it to my WiFi to use the Denon app.
I have heard some conflicting answers on what type of WiFi adapter/bridge to buy to connect WiFi to the receiver. The connection requires a ethernet cord. Does anyone have any recommendations for a specific WiFi adapter/bridge to buy? I have heard that I need one with Bluetooth and music streaming capabilities (Spotify) and I have also heard that any WiFi adapter will do because the Denon app and receiver will handle the music streaming part.
Note - simply setting up my router close enough to connect to the Denon receiver won't work in this case.

7.2ch Integrated AV Receiver with D.D.S.C.-HD, Denon Link HD, 3x HDMI out, AirPlay, Spotify and 4k video scaling.

Denon Avr X4000 Problems

Important note: In order to process and respond to your inquiry, a Denon support account will be created if you not already have one. By clicking on “Continue”. I'm trying to play music through the Spotify app on my phone to my Denon AVR-X3000. My mobile phone and Denon are on the same network and subnet. Spotify doesnt show the Denon when I try to output to it. I know the Denon remote control app has Spotify built into it but the functionality is very limited.