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.

[tomo8]

Thank you for your description about the problem of gen2 chromecast. I've already factory reset my device. How can I get the solution when it is identified? 

[dayane1]

O Chromecast está com erro de autenticação. Iniciei a configuração de fábrica mas o erro persiste.

[Daniel232223]

Me pasó igual llevo 3 días en esto 

[dayane1]

Poxa, será que volta a estabilidade ? 

[Ana1970]

Me pasa lo mismo, habrá alguien que responda por acá. Me dice "No se puede autenticar tu Chromecast"

[luckySant005]

Tengo 3 dias que mi chromecast no se conecta y no no logra la función de conectar , ya no es visible en mis dispositivos del hogar, está conectado a internet pero no esta en ningun dispositivo o plataforma 

[Sebshs]

https://www.googlenestcommunity.com/t5/Streaming/Regarding-an-issue-with-Chromecast-2nd-gen-and-Chro...

[Britt0415]

I set my phone back to March 8th and then reset the chromecast again and it worked 

[Eduardo52]

Yo reinicie la configuración de fábrica me pueden enviar como actualizaciones para poder seguir usando chromecast2

[opusrevolution]

según dicen están trabajando en una solución para los que lo hemos reseteado

[Baxh-Wolf]

Si reiniciaron de fabrica, pueden volverlo a configurar para que el dispositivo este cuando menos conectado a internet, de esa forma cuando salga el parche que arregle el problema puedan recibirlo

Deben cambiar la Fecha y Hora de sus Telefonos o cualquier dispositivo que tenga la aplicación de Google Home, y cambiar la Fecha/Hora MANUALMENTE y elegir una Fecha ANTES DEL 9 DE MARZO DEL 2025 de esa forma pueden volver a configurar su Chromecast para conectarlo una vez más a internet, esto no arregla el problema de streaming pero al menos los conecta de vuelta a internet para recibir actualizaciones

[Manuribs]

Ok. This is enough! Google is more than aware of the problem and is taking this long to fix it? This is the certificate that ran over 10 years, In other words, expired. Why not going issue a new certificate and launch it in a firmware update? Why is taking so long? I bet Google is going to say: "buy a new device". Ridiculous, solve this problem you created

[Dynomax]

This a global issue. I just can't understand why Google has been SO SLOW to respond, fix or even provide regular updates.

[Pamtl]

Gente...mas não é possível!!! 😔 

E a solução?!

[Buellmax]

Que faites vous ? Tout a toujours bien fonctionné et subitement plus possible de caster alors que l'appareil est bien reconnu, j'ai fait de même avec le 2° et le 3°, même message d'erreur. Déduction ... Vous en êtes l'origine. Pas grave, on vivait très bien sans vous avant, on reprendra nos habitudes plus simples et certainement plus saines.  Tchao 🖕🏾 😜

[Marconigatan]

Jag behöver hjälp att koppla till Chromecast 

[Novyz]

https://www.googlenestcommunity.com/t5/Home-Automation/Fix-Chromecast-authentication-issues-Fix-cast...

[Hollymoorefun]

Any closer to a fix? It’s been 4 days 

[joaop]

Seems that some have found a way around (as long as you did not factory reset) using computer and chrome browser. Read it somewhere on https://www.googlenestcommunity.com/t5/Streaming/Regarding-an-issue-with-Chromecast-2nd-gen-and-Chro...

[Novyz]

They found a temporary fix to the problem
https://www.googlenestcommunity.com/t5/Home-Automation/Fix-Chromecast-authentication-issues-Fix-cast...

[Mirko1]

Purtroppo ho fatto il ripristino dei dati di fabbrica ma solo dopo ho letto che non andava effettuato. Come posso far rifunzionare il mio dispositivo?

[Hayhus]

Ga naar 8 maart met je telefoon en doe alles opnieuw dan is het terug verbonden met je internet.je kan niet casten maar het is terug verbonden met je wifi.

[Novyz]

Ciao google ha fatto un casino con i certificati dei chromecast e quindi ora non si riescono ad autenticare era sconsigliato resettarli perche sarebbe poi stato piu difficile una volta scollegati dal wifi effettuare laggiornamento per "ripararli" ma non preoccuparti basta che setti la data del telefono prima del 9 marzo che e il giorno nella quale sono scaduti i certificati e puoi riconfigurare il device normalmente dalla app di home e se capisci l'inglese,  alcuni sono riusciti a creare una soluzione temporanea al problema permettendoti di usarlo normalmente o quasi:  https://www.googlenestcommunity.com/t5/Home-Automation/Fix-Chromecast-authentication-issues-Fix-cast...

[Jolie0809]

Yes please let us know asap I can see anything 

[Britt0415]

It fixed on my end 

[LOULOU21]

Lucky you. Wish mine  was!

[Britt0415]

Did try what I said and set the date back on your phone or tablet to March 8th and the reset the chromecast again ?? 

[victorjmartinez]

I’m seeing that your team was well aware of this issue as early as Monday, if not sooner, but customers only just were made aware of it recently. Speaking for myself, I only received an email from Google this morning - Weds 3/12/25. This was after wasting hours trying to resolve the issue Tuesday - following the troubleshooting instructions from Google which included recommending resetting the device to factory settings. Now you’re saying NOT to do that. So why does your troubleshooting page say the complete opposite? Now I’m stuck with a factory reset hockey puck that’s useless. Maybe own up to your mistakes and send customers a replacement?

[Chromecast1234]

How did they not see this issue coming?

wasn’t like the expiration date changed, this should have been figured long before the device just stopped working. At the very least they could have warned us.

Fishy this comes at a time when they are pushing new smart home devices which I’m assuming some people bought when this broke. I’m too stubborn to do that cause I feel like it’s what they planned all along

[Dianaferreira55]

erro na atualizaçao

[stu0008888]

The first thing I did was factory reset...

[Taniyani]

Han pasado más de 72hrs y seguimos sin una respuesta a las falla? 

[matthieubrucher]

Hi,

I just came back home to see that I can't cast to my TV anymore. It was working this morning, but now, my phone says that the ChromeCast (old model) has an untrusted firmware? What is going on Google? Are dropping support again without warning?

[Julie_K]

Same happened to me mid cast

[Kurtmieville]

Same here.

[Sandy28]

Também aconteceu o mesmo por aqui 

[Larsthors]

All my 4 Chromecast doesnt work anymore?   Cannot be trusted anymore?? Why

 In the fuvking middel of a football match..😭

[Baymax]

Same here in indonesia . After i factory reset it. Cannot connect 

[BakerStreet]

Same problem here

[Ceciliaca]

I tried to connect Chromecast this morning but didn't work. Restart again still doesn't work. It said I have authentic problem. I reset my Chromecast and now is unable to add in. And have authentic problem again. Use my pixel 8 and reinstall my Google home. Same issue. I am a little disappointed about this issue as I buy so many generation fo Chromecast and use them since the Chromecast coming out.