Error: 'Some Features May Not Work on This Network'

Same message on my HomePod...

I recently added a HomePod Mini to an existing HomePod setup, and they played well together for 1 day using Pandora. Next time I tried to play the same music across both devices, one wouldn't play at all, but I could get it to play a different stream of the same station. (not in sync...not even the same song)

I have removed both devices and reinstalled, updated the software twice (to 14.2, then to 14.3 today) .

Sometimes, restarting or reinstalling will result in the HomePods being able to splay in sync but once music is paused, only one will play next time I listen to music.

I tried setting up a zone in Home called "Main Area"to include both rooms where the HomePods are located, but it doesn't help.

Siri will say " now playing in the Kitchen and Living room" only that isn't the case. When I call up Siri and request that the music also plays on the other speaker I get "Sorry, I can't do that"

When re installing I've gotten the message on my Mini saying "Some Features May Not Work On This NetworK' "HomePod features like Air Play and Personal Requests may not work on " Network Name" because it does not support peer- to peer connections." It points me to a page regarding 802.1X networks (which I do not have)

My modem/router is an Arris SBG6900-AC, I'm guessing I need to make changes to the network so the speakers maintain a connection, but I have no idea where to start.

Same router and mine has the same issue. They work fine separately but as soon as the homepods are paired, the disapear from airplay and won't play audio together.

Router version: 2.6.4-3-g20200131020426-RAC2V1K-prod.

Homepod Version: 14.1

This might be a spectrum thing but hoping something gets figured out.

Which is both true and amazingly horrible. It's almost 2021. 5GHz isn't a new thing. Commingled networks aren't a new thing. Pushing people to 5GHz when possible reduces frequency congestion for everyone and everything. Sigh.

As of this morning, everything works again. I’m guessing spectrum pushed a new router update.

If it is a dual band router you may find things work better if you disable the 5GHz radio.

tt2