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 set up Roon to use my WiiM Pro
Roon is a music player that can connect to your WiiM Pro and play high-quality music. To play music with Roon, installing and connecting the Roon software to your WiiM Pro is necessary. Here are some steps: 1. Download the Roon software fr...
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.