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Multi-room group playback FAQs

Group creation

Do I need all of the speakers to be on the same network in order to group them?
Yes. To successfully group the speakers, you will need to connect all of them to the same network. 
Note: Dual-band access points (5GHz and 2.4GHz channels), wired connection (Ethernet), and connection through Wi-Fi extenders are all supported with group playback.

Make sure you disable AP/Client isolation on your Access Point / Extender and that Multicast forwarding is not disabled between the Wi-Fi networks.
How many groups can I create?
You can create as many groups as you want. 
How many speakers can I add to a group?
You can add as many speakers to a group as you want. However, adding too many speakers to a group might lead to increased network congestion and a higher chance of audio dropouts.
Can one speaker be part of several groups?
Yes, a speaker can be part of as many groups as you want. 
Can I add my Chromecast (that casts video) or Android TV to a group?
No, grouping Chromecast (that casts video) or Android TVs is not supported.
Can I add my Chromecast built-in audio devices to a group?
We are working on adding Multi-room group playback support to all of our existing and upcoming Chromecast built-in audio devices. This will allow you to group your Chromecast Audio devices and Chromecast built-in audio devices from different brands into one seamless experience. This feature will be rolled out to all Chromecast built-in audio devices throughout 2017.

Playback quality

Is the audio being re-sampled or altered?
No. Music is played on all speakers in the original format, ensuring high-quality sound.
How can I avoid dropouts during group playback?
In order to ensure reliable group playback, please consider the following recommendations:
  • Try connecting at least one Chromecast Audio using the Ethernet Adapter for Chromecast.
  • Try connecting Chromecast Audios that are close to your router to a 5GHz network.
  • Try placing your Chromecast Audio closer to your router.
My group of speakers is consistently playing out of sync. What should I do?
One of your speakers might be adding some delay to the playback. Try adjusting the group playback delay for that speaker. Learn more about how to correct group playback delay.
I've casted to a single speaker of a group during group playback and the group playback stopped. Is that expected?
Yes. When casting to a single speaker of a group during group playback, the group playback will stop on all speakers.

Adding/deleting groups

Can I add/remove speakers to an active group playback?
You can add speakers to the group during playback by editing the group. Note: Removing speakers from an active group will cause the playback to stop.
My group card isn’t showing all the speakers that I’ve added to a group. What’s wrong?

First, check that all group speakers are plugged into power and connected to the internet. Then fully close the Google Home app and re-open it. 


To close the app from an iPhone: 

  1. Press the Home button two times quickly. You’ll see small previews of your recently used apps.
  2. Swipe left to find the Google Home app.
  3. Swipe up on the Google Home app’s preview to close it.
To close the app from an Android:
  1. Launch the recent applications menu to see small previews of your recently used apps.
  2. The Recent Apps button should be accessible at nearly any time along the bottom of the screen along with the other buttons on the virtual task bar.
  3. Swipe up to find the Google Home app.
  4. Swipe right on the Google Home app's preview to close it.
If you’re still unable to see your speaker(s), this article may help troubleshoot the issue. 
I deleted a group and it keeps coming back to my Devices list. How do I remove it completely?
Sometimes it takes a minute for the group to be completely removed from the Devices list. Please delete the group again, wait 1-2 minutes, and then fully close the app and re-open it.

To close the app from an iPhone: 

  1. Press the Home button two times quickly. You’ll see small previews of your recently used apps.
  2. Swipe left to find the Google Home app.
  3. Swipe up on the Google Home app’s preview to close it.

To close the app from an Android:

  1. Launch the recent applications menu to see small previews of your recently used apps.
  2. The Recent Apps button should be accessible at nearly any time along the bottom of the screen along with the other buttons on the virtual task bar.
  3. Swipe up to find the Google Home app.
  4. Swipe right on the Google Home app's preview to close it.
Note: Multi-room group creation functionality is only available on a phone or tablet. This feature is not supported from the Chrome browser. However, you can still cast to a group from Chrome.

Elise is a Chromecast expert and author of this help page. Leave her feedback below about the page.

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