HomePod Peer-to-Peer Communication issue with TP-Link smart connect router
The TP-Link Smart Connect may cause an issue on HomePod 2 with message being “HomePod Peer-to-Peer Communication Issue: “Some Features May Not Work on This Network”
Resolve for me was to disable the Smart Connect. This also made HomePod Minis and the HomePod 2 work well together again.
[Re-Titled by Moderator]