Homepod controls not available

What device is it not working on? What os version (please don't answer with latest) it is running? For example my late 2012 Mac mini runs macOS 10.15.7 Catalina, which is the latest that it can run, but by no means current. The Home app in Catalina is incompatible with the new Home architecture - Apple Support. I'm trying to help you establish if you are seeing expected behaviour or not.

In some cases rebooting all of the devices involved, including your router and/or access points, may help.

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Are both devices connected to the same Wi-Fi network, and does that network allow peer-to-peer traffic?

tt2

If other devices that would expect to have access aren't working what versions of what OS are involved?

tt2