My friend is having trouble setting up Roon. But I have never used Roon before so I don't know anything about it. I would be happy if someone could help us.
He enabled Roon in the WiiM app and opened the Roon app installed on his Mac PC. However, Ultra does not appear in the audio section.
faq.wiimhome.com
According to the FAQ, the WiiM appears as a Roon Ready device in the audio section.

However, his Roon app does not show anything.
There is also no Roon Ready section.

The Mac and Ultra are connected to same network via Wi-Fi, he have tried rebooting the Ultra, Mac, and router, but still no resolution. Maybe something needs to be configured on the Mac side, I'm not sure.
What should do now?
Thank you in advance.
He enabled Roon in the WiiM app and opened the Roon app installed on his Mac PC. However, Ultra does not appear in the audio section.

How to Use Roon with Your WiiM Device
Roon is a high-quality music player for streaming and managing your music library across multiple devices. WiiM devices are Roon Ready, meaning they can receive high-resolution audio directly from Roon. This tutorial will guide you through using ...
According to the FAQ, the WiiM appears as a Roon Ready device in the audio section.

However, his Roon app does not show anything.
There is also no Roon Ready section.

The Mac and Ultra are connected to same network via Wi-Fi, he have tried rebooting the Ultra, Mac, and router, but still no resolution. Maybe something needs to be configured on the Mac side, I'm not sure.
What should do now?
Thank you in advance.