[Help] The notification not work on Mac companion app

I downloaded the macOS companion app from the App Store, and added the device into Home Assistant. I can see the device from the mobile app integration. However, there is no notify service for Mac, which is similar as notify.mobile_app_macbook_pro. Therefore, I just can’t receive the notifications on the Mac.

From the Options - Notifications settings on the Mac app, you can see that the push ID is not registered the remote notification.

I have re-installed the app for several times, and reboot the HA server, but it doesn’t work.

Companion app: 2023.7(2023.471)
Mac OS: Ventura 13.6.1

Finally, the issue was resolved.

The cause is that the app couldn’t connect to the Firebase Cloud Messaging service, which is the app using for notification service. After switching to another network on the Mac, the app received the push ID.

Now, the app can receive the push notifications on the Mac.

[Reference]

Not registered for remote notifications · Issue #465 · home-assistant/iOS (github.com)