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.

[MAXIMO2]

I have this same issue it happened this afternoon. Searching for answers. Thanks for the post. Now I know I am not the only one experiencing this.

[Guero951]

No it's a lot of people right now having the same issue 

[Nati66666]

Hola, hoy llegué por la tarde a mi casa y encendí el televisor y vi que no podía conectarme. Ni con HBO ni con Netflix ni con nada. Procedí a hacer mil cosas y reinicie de fábrica el Chromecast. Ahora me dice que no se puede auténticar. Probé míl cosas. Pero nada funciona. Leí que es un problema global. Alguien me puede ayudar? Gracias 

[Gerardoperz]

Tengo el mismo problema hoy me intente conectar y nada. Encontró solucion

[random198653]

I am aware no one will read this - people are in write only mode - but according to reddit threads it's a global issue, they know about it, and working on it. Check in a day or two to see if there's a solution posted anywhere.

[DarceeSchmidt]

Hey, thanks!  I was checking reddit earlier and wasn't finding anything current, just old posts on how to fix older CC connection issues.   Thanks!  I'm glad it seems to be something that happened today.  

[mannysolis]

Please fix this, I am in Canada and same experiencing same issue!

[Electricity]

Same issue in Romania- 2 Chromecast devices- 2nd gen- both stopped working today. Nothing worked- went through all steps; I get the same "could not connect to your chromecast device" message in the Home App.

[Alex_197]

Same error.

Worked fine yesterday 03/08/2025/ I have 3 devices GA00439-US. If I try to stream YouTube I see the same untrusted message.
 
I did reboot, restarted my phone, unplugged the Chromecast from TV - nothing. So I did the factory reset. 
Started the setup. My phone sees the Chromecast - the same Device name as in the bottom right corner of the TV. Clicked Next - 4 characters code  show up on TV like A1V2 and then I see the message that the device cannot be authenticated.,

[DarceeSchmidt]

You're lucky, mine won't even get to the 4 letter code stage!  It finds the CC, then thinks and thinks and says it can't communicate with my CC. 

[Marxtreme]

Hola tenia problemas de transmisión a mi chromecast y lo reinicie de fabrica, también la aplicación Home y ahora no me permite terminar la configuración, cuando agrego el dispositivo me ahora un mensaje de error de autenticacion?

Pero reiniciando el aparato, la aplicación la red y no me permite vincular ?

[Stanleyy]

Same to me. I cant connect my Chromecast anymore. What is the problem?

[RedDeadCCast]

I'm in Silicon Valley, getting the same issue. OG Chromecast could not authenticate. I Factory reset as directed, so firmware version is whatever originally came on this. 

Error from Google home when trying to set up again:

We couldn't authenticate your Chromecast. Please visit
support.google.com/chromecast for help troubleshooting this issue.

[Steve_D]

exact same issue here in UK

[MoMostafa]

I can't add Chromecast device to my Home app. I used to use this device for a long time and today suddenly it stopped working, when resetting no luck to add to Home App with error message 'Can't authenticate your Chromecast'

[Vims1301]

Same error for me....hey gooogle pls listen to us and provide solution asap 

[Letian]

Desde hace unas hs no puedo transmitir contenido de mi celular a mi dispositivo chromecast de 2da gen.

Primero error de firmware, que reinicie el dispositivo para actualizarse, al hacerlo ahora tengo error de autenticación para emparejarlo con mi celular, por lo que ahora tengo un Chromecast obsoleto ya que solo se puede configurar conectado al celular... Pero que al no poder autenticarlo para que empareje con mi celular no puedo configurarlo......

Me parece una práctica de mal gusto..

[anduso2]

Primero error de firmware, que reinicie el dispositivo para actualizarse, al hacerlo ahora tengo error de autenticación para emparejarlo con mi celular, por lo que ahora tengo un Chromecast obsoleto ya que solo se puede configurar conectado al celular... Pero que al no poder autenticarlo para que empareje con mi celular no puedo configurarlo...... EXACTAMENTE LO MISMO.

[AnaEgito]

Olá,

Preciso de ajuda com a conexão do meu Chromecast.

Até ontem estava funcionando normalmente, mas hoje ao tentar conectar, não funcionou. Tentei reiniciar o aparelho, o roteador, o dispositivo Chromecast, saiu da luz amarela piscando para a luz branca, desinstalei e reinstalei o app e nada funcionou.

Encontra o Wifi, aparece o código na TV, o 

Durante a tentativa de conexão, a mensagem de erro foi:

Dispositivo não confiável

Não foi possível verificar Quarto

Serra. O firmware do dispositivo pode estar desatualizado.

No aplicativo Google Home aparecia como Off-line.

podem verificar como devo proceder?

[guille356]

mismo problema

[NATTi89]

Hola, mi chromecast dejo de funcionar, trate de todas las maneras posibles pero no conecta. Espero que pronto den una solución.  

[anduso2]

Primero error de firmware, que reinicie el dispositivo para actualizarse, al hacerlo ahora tengo error de autenticación para emparejarlo con mi celular, por lo que ahora tengo un Chromecast obsoleto ya que solo se puede configurar conectado al celular... Pero que al no poder autenticarlo para que empareje con mi celular no puedo configurarlo......LO MISMO POR AQUI 

[Gislaine]

O meu Chromecast parou de funcionar, já tentei todos os tipos de configurações mesmo assim não funciona. Parece que não é um caso isolado. O que aconteceu?

Quando volta ao normal?

Obrigada!

[FernandoY]

Simplesmente por puro descaso ao seu consumidor o Google cancelou todos os Chromecasts 2. Falta de respeito com seus usuarios, falha de firmware o escambau. Negócio é procurar os JEC (Juizados especial civel) e Procon, afinal pagamos pelo equipamento!!!

[mgalvish]

Mismo problema desde Colombia

[Rene11]

Panamá, igual. Google dice que no restablescas, el equipo, por que no podras solucionar el problema, a esta hora, creeo que todos ya hemos hecho eso. Muy mal google

[Juanpablo79]

Me dice que no puede autenticar mi chromecast 

[Rene11]

El oroblema es general, y google no da solucion

[pablosazycz]

alguna respuesta acerca de este tema? google dijo algo ?

[pablosazycz]

para mi google nos va a tener que regalar un chromecaste de nueva generacion a cada uno, no es posible que falle algo asi durante tanto tiempo.

[Frenchred12]

I tried to cast a youtube video and it saod bad firmware so wouldnt connect. I went to google home and hit reboot on the connected devide nothing. So i did a hard reset. Now when google home finds the chromcast and i try to connect says authentication error. Ive tried to reset rouder unplug it nothing works

[RenaeP]

We did the same thing nothing worked

[Potxi]

Same here. It's clearly an issue on Google's side (if it's not a surprise end of support and service).

Also, trying to contact via message shows 404. 

[Kirbird]

The zero accessibility and accountability right now really peeves me

[li48]

no puedo transmitir contenido a mis Chromecast desde ningún dispositivo,ya hice todas las pruebas necesarias

[Victorgoiburu]

Podes avisarme di ya se te arreglo? Yo sigo sin poder autenticar 

[Mcouto]

Mensagem " não foi possível autenticar o chromecast " e nada faz priceguir...

[Pachi87]

Me pasa lo mismo

[Mr_J]

Global outage. 

https://www.dailyrecord.co.uk/lifestyle/google-chromecast-suffers-global-outage-34827516

[Mr_J]

#GlobalOutage 🛜👇