Regarding an issue with Chromecast 2nd gen and Chromecast Audio

[GoogleNestTeam]

Update 3/20/25

Hey folks, 

If you previously performed a factory reset, we’re happy to report that the Google Home app update will reach all users today.

Please make sure you’re on version 3.30.1.6 for Android and 3.30.106 for iOS to set up your Chromecast (2nd gen) and Chromecast Audio. Check out this help center article if you need help updating the Google Home app.

If you’re still experiencing problems during setup, please reach out to customer support for further assistance. 

Thanks again for your patience while we worked to resolve this issue!

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Update 3/17/25:

Hi folks,

Thank you for your patience as we worked to resolve the issue with Chromecast (2nd gen) and Chromecast Audio devices. As of today, this disruption has been fixed.

If you did not perform a factory reset, your device should now function normally. If it is still not functioning as intended check the firmware version of your device by following the instructions here. If your device is not on the corresponding firmware version, please try rebooting your device to start the update process.

For users who have performed a factory reset, you will need to update your Google Home app to the latest version (3.30.1.6 for Android and 3.30.106 for iOS) to set up your Chromecast (2nd gen) or Chromecast Audio device again. The app roll out has begun and may take a few days to roll out to everyone. We’ll post a confirmation once the roll out to all users is complete.

We sincerely apologize for this disruption and any inconvenience it may have caused, and we are committed to ensuring all users are back up and running as quickly as possible.

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Update 3/14/25:

Hi everyone,

Thank you again for your patience, we have some good news - the fix should reach all users today. If your device has received the update it should be on the following firmware versions:

Chromecast (2nd gen): Firmware version 1.56.467165

Chromecast Audio: Firmware version 1.56.467166

Check the firmware version of your device by following the instructions here. If your device is not on the corresponding firmware version, please try rebooting your device to start the update process.

Please note: If you performed a factory reset during the troubleshooting process, you may still be experiencing an issue where you cannot re-setup the device. The team is working diligently to resolve this, and we will provide next steps as soon as possible.

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Update 3/13/25:

Hey everyone, thank you for your patience while we work to resolve this issue. Here’s the latest:

We have started to roll out a fix for the problem with Chromecast (2nd gen) and Chromecast Audio devices, which will be completed over the next few days. Your device must be connected to receive the update.

If you performed a factory reset during initial troubleshooting, you may still be experiencing an issue where you cannot re-setup your device. We are working to resolve this as soon as possible. Please continue to check the Community page here for updates and next steps.

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Update 3/11/25: 

Hi all,

An update on the situation: the team has identified the cause of the issue impacting Chromecast (2nd gen) and Chromecast Audio devices.

Please do not factory reset your device. If you previously performed a factory reset during troubleshooting, you may also be experiencing an issue where you're unable to re-setup your device. The team has identified the cause for this as well and is currently working on a fix.

We’re working to resolve this as soon as possible, and will keep you updated when there is more to share.

We sincerely apologize for the inconvenience, and appreciate your patience in the meantime.

Thank you.

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Hello,

We're aware of an emerging issue impacting Chromecast 2nd gen and Chromecast Audio devices, and we are working on a fix.

Do not factory reset your device - we will keep you all updated when the fix rolls out. If you have already factory reset your device, we will provide instructions to set your device back up as soon as possible.

Thank you for your patience.

[salasjairo]

Error de autentificacion también!

[cocaineeyes]

I experienced intermittent casting the last few days. I did a factory reset and now it cannot authenticate when setting up.

[Mike_91]

Bye google! 

[Kaytt]

Je suis du Canada au Québec et cet après midi mon chromecast a planté et impossible de le faire fonctionner car "impossible d'authentifier votre chromecast" ... Même après réinitialisation etc... Et la je vois que c'est un problème mondiale... Bizarre, à suivre

[Johnlie16]

The same problem here in japan

[Jjessup0002]

Same issue

[nowa]

Same 😐

[Adh1etz]

Something happen with firmware or what ? , it also happen in Indonesia,  can not connect 

[JtToews]

Same here

[Brokdel]

I decided to setup my Gen2 today on one of my old tv's and faced this problem too. Just my luck that this issue seems to have happened today of all days! xD

For more clarity, here is a reddit post that can clarify that Google seems to be working on it:
https://www.reddit.com/r/Chromecast/comments/1j7caui/did_google_just_brick_the_2nd_gen_chromecast/

[DDG1]

I believe that google implemented a Chromecast update but forgot to mention it 

[Adh1etz]

So it's a International issues happen, and still no solution from Google support ?

[DadBodAF]

Having the same issue...really hope this isn't a matter of lost support and expecting us to fork out for another newer unit...

[Orielle]

Same issue here. It was working fine in the morning. They should at least inform the users about the new changes. 

[jplargente]

Same here in Argentina

[Miek321]

I'm having this same issue, couldn't cast to my Chromecast all day, did a factory reset, now it can't authenticate.

[ArtyMarty]

Steps to get a faster fix for chromecast issue:

I you have a pixel device you get priority support.  Go to your settings on phone.

-> Tips and support (prob last thing in settings) 

-> Contact us 

-> (subject) chromecast not connecting 

->  when asked what device, select your phone model. 

-> request a call back 

-> when they call, tell them you have tried resetting etc it's a world wide problem, everyone around the world is reporting on Google forums, reddit etc that chromecast are off line and won't connect etc.   

The person you speak to will email the Google chromecast team with your email address etc and they have to get back to you within 24 hours. 

[jyotsna]

Same issue, wasted time rebooting router and factory setting chromecast multiple times.

[jahdebe]

Having the same issue since this morning. 

[Hallt55]

Same- 2nd Gen that has worked fine for close to 10 yrs stopped linking to my Home, and now can't authenticate following a factory reset 

[Kiwi22]

I have a Gen2 and cannot authenticate. Help

[dwemthy]

Same. Worked fine this morning, then this afternoon it stopped playing anything. Tried a factory reset and now getting an authentication error

[Lalyc0]

Me pasa lo mismo y lo quise reinstalas y da error de aitenticacion. Que pasa con este fallo general? Lo van a arreglar? 

[Lizzyd121]

Happening in Australia as well.

[Lizzyd121]

Australia:  Yay🌼, my Chromecast Gen 2 is alive again!!!   I just completed the date wind back to 7 March 2025 in Settings on my Nokia phone (Android Version 14), ran Google Home to reconnect my Chromecast to my WIfi and dumb TV, saw an update progress bar on the TV (never seen before). Google home: "set up says it has a problem, update is taking longer than expected". I wait 5 minutes  no change, enter Help Centre none of the options fit me, exit Setup and put the date back to automatic. Open Google Home again and my Chromecast connected to my dumb TV is listed 👋.  Casting via my phone is working. 😺

[fczanardo]

Same here. I am from Brazil.

[kk19]

fix it 

[PlanetMarz]

Looks like chromecast stop there services. 

[Andyzeone]

Same for me! Stopped working. After reboot, reset and even changing display device the chromecast couldn't be added back because of an authentication error...

[Vywolf]

Same problem here, cannot authenticate. Tried factory reset and everything, nothing seems to work. I have a Chromecast 2 gen

[Hoguer]

Same in my case. I get this....

We couldn't authenticate your
Chromecast.

[Rtrevino]

Same here in California. 

[proxion]

Me pasa lo mismo en mis 3 Chromecast mismo error. Mal Google.

[JesusIsLordLV]

Same here from Las Vegas, NV. I have my product Serial Number. I've rebooted 5 times to no avaiil. Someone mentioned to me that Google is deactivating the Chromecast devices of people who've been critical of Israel on Youtube or otherwise. Let me know what you think. 

[brunnie]

Google...does not care. Have any of you received any notice from Google saying anything about this issue? Time to dump Google.

[sb301]

Same problem.  Come on Google 

[Norma11]

Me pasa lo mismo, no autentica el chromcast, ya lo reinicié,  lo configuré de fabrica y nada, no lo puedo usar. Una c@g@d@ esto

[Squintdrummer]

Apparently an expired 10 year security certificate on 2nd Gen models

[benleeburke]

Same here. Must be a global issue 

[Kam3]

Same issue here.

Looking forward to a pointer to a firmware update we can send from our phone via Google home to Chromecast.