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.

[Al_Stankus]

In this era of gutting consumer protections, I'm highly concerned that Google feels emboldened to do as they please. 

[TheBigDave]

What's going on with Google? Suddenly I get "Untrusted Device" notification when I try casting from my phone. Has Google bricked older Android devices?

Frustrating! 😠

[andybartkiewicz]

We are seeing the same issue in San Diego, California.

[eighty666]

same, uk

[VillageMan]

Please fix this soon , I hope it's not going to be abandoned again and that's the end of another Google product in my home that I have come to love and like the Stadia it ends up on the waste pile.

[RikettyKate]

6 hours and still no instructions?  found a thread elsewhere (sorry cannot credit user as it is now buried in the large number of comments). On an old phone I reset the date back to 7 March 2025. Set device up in Home app. The device is now online (cannot cast) so if an update comes through it should activate? Important to set your date back to current date after this fix.

[RikettyKate]

NOTE: Did this after I had already done a factory reset as the Google advice came through 12 hours after the failure

[Tiga12]

Please fix it asap !

It s not normal that the Chromecast stopped working suddently

KR

[Thoth]

This has been an issue for over 24 hours. Can we get a time frame for a fix?

[Thoth]

It’s unreal that there is such a widespread problem with a product has happened with no timeframe or anything other than a “we are aware that your hardware is now useless” post buried in the help forum. SMH

[Davidoff]

Traurig, dass ihr als Marktführer solcher Streaming Produkte nicht sicherstellen könnt, das man diese Produkte dauerhaft ohne Probleme verwenden können. Es reicht doch wenn man einmal kauft, es wird nirgends drauf hingewiesen das Streaming Dienste irgendwann nicht mehr nutzbar wären. So landen Kunden schnell bei der Konkurrenz und entscheiden sich nicht für ein Nachfolgemodell....

[Dander2]

Tengo el chromecast.  Pero desde hoy no me funciona. En la aplicación Google Home no me lo reconoce.  Lo desinstale para volverlo a autenticar pero desde hoy que me aparece una ventana comunicando que "no se pudo autenticar mi dispositivo".  La luz blanca funciona. También aparece la galería de imágenes prestablecida en el smart TV. Pero no lo puedo autenticar. Tampoco puedes conectar el chromecast al wifi.

[pcbjuan]

me pasa lo mismo que pasa google???

[MaxiF]

Estoy igual. Que version de Chromecast tienen?

[flagdar]

Mismo problema por aquí, no hay caso

[Chakan24]

parece que todos los dispositivos chromecast de segunda generacion dejaron de funcionar hoy debido a una fecha tope de autenticacion que poseian como limite, no se la gente de google hara algo al respecyo pero son cantidad de usuarios por toso el mundo quejandose por lo mismo, yo incluido.
Un usuario de reddit encontró el problema, te dejo el posteo.
https://www.reddit.com/r/Chromecast/comments/1j7lhrs/the_chromecast_2s_device_authentication/?rdt=61...

[flagdar]

Para mi anduvo OK ese workaround. Primero cambie la fecha de mi teléfono al 8/3 para poder configurar mi Chromecast. Luego seguí los pasos descritos en ese post y recuperé mi dispositivo. Muchas gracias

[VillageMan]

I tried contacting Google support today to phone me it said the wait was 20 minutes. I think maybe that could be 20 days? As I haven't heard nothing not a notification no emails nothing and all my devices are Google. So annoying in fact it's extremely sad as I relied on listening to some music in my home due to illness and discomfort. 

[Yvod]

I tried everything and trouble shoot the issue. It told me to factor rest so I have and jothing. Jot very picking the signal up. 

What does it mean if I have have done factory reset ??? 

[Anna_26sag]

I did a factory reset already 🥴🥴🥴

[mcp2025]

Me too 😳

[Anonymous]

Can we get an ETA??

[Ferservente]

Chrome no conecta por aquí tampoco ! Uruguay

[Yvod]

My chromescast has stopped working in rhe last 24 hours.. I cast from my phone, android. 

I have tried rebooting and factory reset. It is saying cannot authenticate chromecast. No issues with Internet as that is working on laptop, phone etc. 

No idea what the issue is. Why has it stopped working??

[Bas3]

Hier de workaround/fix om je chromecast v2 weer te laten werken, voor de Nederlanders onder ons, die Android gebruiken:

https://www.googlenestcommunity.com/t5/Streaming/Hoe-je-de-ChromeCast-2e-Editie-weer-werkend-krijgt/...

[Jturk]

Let’s be honest they deliberately killed this thing with a biffed security certificate authentication issue or something similar.  

[RoWm]

I'm in Michigan and having the same problem with both my gen 2 chromecasts. They worked Saturday night, didn't work Sunday night. Now today (monday) I have tried everything I could find suggested online... tried to reinstall the devices on my Google home app from both my phone and tablet, deleted and reinstalled the app on my phone, rebooted my router, and did the factory reset on the chromecasts. And I still get the message that it cannot authenticate my chromecast. Very frustrating and no support what so ever. Any other suggestions on what do would be greatly appreciated. 

[Trina14]

Hey, over night one of my chromecasts won't stream anymore! I have the picture up and the streaming symbol is there but when I try and stream it the picture goes blank. Help????

[Davidoff]

Mein Ch4imecast geht nicht mehr, wird man jetzt bei Streaming Geraten auch gezwungen alle paar Jahre was neues zu kaufen... Bitte behebt das Problem. Reicht doch wohl wenn man einmal kauft, danke

[Gianp71]

After normally using Chromecast since yesterday It is not possible to transmitt videos from the smartphone to the TV,  I'm trying to configurate again the Chromecast but I received message authentication not allowed. Other thread here displayed are reporting the same problem, if there is a problem Google should comunicate it. The question is: is there a problem with Chromecast and Google home?

[verdr3ht]

I have exactly the same problem since today. 

[alghanemku]

Me either. Just today.

[alghanemku]

How to fix it?

[verdr3ht]

https://www.reddit.com/r/Chromecast/comments/1j7g1vz/comment/mgzd61p/

[Bianunes]

Também estou com o mesmo problema, não consigo configurar,já tentei de várias formas e sempre aparece a mesma mensagem de autenticação e com o link para resolver. Mas não tem nada no link que ajuda.

[alghanemku]

Exactly the same. The link doesnt help.

[Jonato]

Não consigo configurar meu Chromecast pq c chega em no ponto de ler o código que aparece na tv, vem uma msg no celular dizendo "não é possível autenticar seu Chromecast, acesse obrigado link da Google, porém não tem nada que ajude a reinstalar.

[Phillal]

Have recently connected fine, but when trying to cast all of a sudden it said something about chrome cast not being a trusted device, (or maybe it was the phone not being trusted device). I then did a reset of the chromecast and now I get this error when trying to connect. “Master bedroom TV may be set up, but we could not communicate with it from your iPhone.”

Does the chromecast device need software updates and how can I check this if I’m not able to connect?

I already tried everything from this thread: 

https://www.googlenestcommunity.com/t5/Streaming/Can-t-communicate-between-chromecast-and-iPhone/m-p...

[ReseCy]

Same thing is happening to me and I've tried every piece of advice I could find to fix it. I've had mine for years without issues and they're clearly still connecting to the internet because the screen is still showing on the TV. My sister is going to bring her phone over to see if hers will connect.

[MitchJ]

Could you put this information, or any information at all, on the actual troubleshooting page? It has a nice 'select your issue' option but provides literally no information on the topic aside from a 'was this helpful' button. I've already factory reset my device due to this issue and hope it can be fixed soon.