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.

[Khizer]

It happened to me last night, and i searched there was no mention on the trouble shoot, so i reset my device and now its not authorizing. I opened a chat and waited like 6 hours and then slept while waiting. Now i see the instructions but already factory reset the device before this was posted

[Garitchou]

Impossible de connecter mon chromecast (2nd gen).

Message d'erreur:

Impossible d'authentifier votre appareil Chromecast.

[esmeraldamartin]

Obviamente, si ayer no encontramos en internet la solución a un problema con Chromecast, reestablecemos... Todos, o la inmensa mayoría, hemos reestablecido de fábrica, esperamos una solución rápida a este problema

[DMV]

Hey... I've reset my device. I'm not aware of any issues with the Chromecast 2nd Gen. Could you please send me the setup instructions again?

[CarloT]

Since Yesterday device is not working.
Already tried to reset it to fabric setting as anytime that in the past years there's been the need.

Now i find stuff like this: 
https://www.pcworld.com/article/2632196/some-older-chromecasts-are-suddenly-untrusted-cant-cast-anym...

I want you to know that device had no issue at all.
Find a fix for those that did the reset and those that didn't both.
G broke my finely working device.

[Valeria69]

Hola, alguien sabe que puede pasar con el Chrome cast de 2 generación?   Hace de ayer que intento hacerlo funcionar y no hay forma. Me dice que no se puede autenticar.     Lo reinicie de fabrica, lo desconecte,  desinstale y reinstale la app Google Home y nada.  NO PUEDO COMPRAR UNO NUEVO, MAS AVANZADO.   Ayudaaaaa

[CarloT]

Same Issue since yesterday. It looks like a planned obsolescence problem.
They need to sell a new product.

[Agus_men225]

Hola. La respuesta de Google es la siguiente:

Hola! Estamos al tanto de un problema emergente que afecta a los dispositivos Chromecast de segunda generación y Chromecast Audio y estamos trabajando para solucionarlo. No restablezcas tu dispositivo a la configuración de fábrica. Te mantendremos informado cuando la solución esté disponible. Si ya restableciste tu dispositivo a la configuración de fábrica, te brindaremos instrucciones para volver a configurarlo lo antes posible. Gracias por tu paciencia.

A ver si es verdad.

[CarloT]

Ofc we did ALREADY TRIED TO RESET IT to fabric settings.

[CarloT]

Find a fix for those that already made the reset.
Device was finely working. This is google issue to fix.

[DavidMuyEnojado]

Espero que brinden una solución y no que simplemente dejen de darle soporte su producto.

[BDX]

Ok Google, please fix this ASAP, or send me news Chromecast (1 audio + 1 video for me) !!!

[Hlif]

Varför går det ej att autentisera chromecast I Google home appen??  Har provat allt som står här på support men inge nting funkar.....

[cekulaine]

Samma här. Har provat allt, men inget fungerar. Det började i går em.

[Carinanasman]

Jag har också samma problem sedan igår!

[David77]

Samma här är det någon uppdatering som gått fel?

[JordiEs]

Y si ya hemos reiniciado de fabrica????

[Keesie123]

hi ,whats wrong with chromecast suddenly , ""cant verify "' no matter what i do ,hard reset of all equip ,nothing seems to work ... annoying if yr depending on chromecast for your streaming .

Or is the support already stopped for 2e gen chromecats and we need to aquire the new product already ?

thx

[Narvin]

Same issue for e last night.

Warning of "unauthorized" or something along those lines.

Hopefully there is a fix soon

[Jonas74]

Same here. "We couldn't authenticate your Chromecast..."

[Stef69]

Même problème depuis hier soir... c'est très embêtant.

[Ghjughju]

Je vois que je ne suis pas seule depuis hier soir ... Le chromecast 2eme génération est-il obselet ? C'est aussi mon seul moyen pour regarder mon écran c'est embêtant. 

[tbuz]

See Google's response to this issue, posted above.

[fabiobruch]

No caso de quem resetou de fabrica o chromecast, fiz o seguinte procedimento para conectar novamente o chromecast ao wifi, no seu celular onde executa o aplicativo home, volte a data do seu celular para o dia 08 de março de 2025, depois disso volte a tentar configurar o wifi do chromecast, após a configuração do wifi não esqueça de voltar a data do seu celular. No meu caso consegui novamente fazer com que o chromecast conectasse novamente ao wifi, agora estou no aguardo da correção do google para que volte a funcionar normalmente o uso de netflix, youtube etc,

Translated by Google Translate.

In the case of those who factory reset the Chromecast, I did the following procedure to reconnect the Chromecast to the Wi-Fi, on your cell phone where you run the Home app, set the date on your cell phone back to March 8, 2025, after that try to configure the Chromecast Wi-Fi again, after configuring the Wi-Fi don't forget to set the date on your cell phone back. In my case I managed to get the Chromecast to connect to the Wi-Fi again, now I'm waiting for Google to fix it so that Netflix, YouTube, etc. can work normally again.

[Olby10]

Does somebody know when Google will fix it? Or if they did it yet? In my case, I restored it by following the instructions (very useful) but the dongle is still offline... 

[Michal3]

I have a issue with Chromecast,approx 6 years old. My Netflix showed the error notification unable to connect to the device. I rebooted the Chromecast device and since then I just cannot restore it via Google home app. Rebooted the router too. When I ho through home app it finds the Chromecast but after I click on connecting,it just shows it can't be done. Any experience with this one please?

[Aletc]

I have the same problem....

[Aletc]

Chromecast 1st generation don’twork anymore. But my chromescat is 3 generation so where is the problem ?!

[Jensa]

Seems Like Google knocked them Out?!? Same issue in my site

[Tane]

Can't authenticate Chrome cast, when is update ready? Can't stream anything your trouble shooting says reboot and you say don't but too late already have 

[George_K]

Same issue here with CCA. Shocking that Google support has not provided an ETA. It has been almost two days since I was able to connect. Many other streaming devices available for this level of support to be acceptable. 

[luciasilva92]

Não estou conseguindo conectar o chromecast esta dando erro esta falando que não foi autenticado 

[Aurelie85]

bonjour, depuis hier ma Chromecast ne marche plus. J ai tt débranché, rebranché, retéléchargé l' appli Google home, j ai réinitialisé la Chromecast. Qd j ouvre l appli, il me trouve la Chromecast, sur la télé cela me fournit le code mais sur l appli il me dise erreur d authentification, que dois faire ?

[Mrtax2005]

problem of Certificate (CA) .. try change date to yestarday (9 march)

[Erasmus]

I have the same problem and  I did the reset!!!Too late!!!

[andbeg]

Не працює як у всіх, немає автентифікації і реакції від представників Google.Чому адміністратори не реагують?Це масове відключення у всіх пристроях по всьому світі.

Таке враження,що вони не можуть просто запустити працююче попереднє оновлення?

[alvarenga7udb]

Here's a notification from Google Nest Team... in a few words... we have to wait 💀 https://www.googlenestcommunity.com/t5/Streaming/Regarding-an-issue-with-Chromecast-2nd-gen-and-Chro... 

If you did factory reset, please see this article, it served me well, as I also did a factory reset. This only works to get the google chromecast show the google stock wallpapers, but we still have to wait for the issue to be solved. Here's the article: https://www.googlenestcommunity.com/t5/Streaming/Did-you-factory-reset-your-CC-hoping-to-fix-the-tru... 

thanks to GiacomoMilazzo | Community Member

[Antonio64]

Hello there,

I am one of those who "restored the factory settings" losing the Wi-fi connection on the Chromecast: I'd like to express my gratitude to those who provided the "date back" workaround. Now at least my chromecast connects again to Wifi to receive the next update! 

[majid-pk2011]

Chromecast 2nd Gen not working and not connecting to Google Home app

[Greenpeace]

Can not connect anymore, since the Last 48 Hours. 

I did everything that google reccomends.

Still nothing. 

Is connected in the same tv since ever. Tried every change possibile. Even tried with s different phone.