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.

[Letian]

The same thing happens to me, and I didn't find a solution.

Were you able to solve it or have any ideas for it?

[amsdragonfly]

I Am having literally the same problem. I just went to go cast from prime and all the sudden I'm having issues. I even factory reset my Chromecast to try and fix the issue and now it's giving me the error that says it couldn't authenticate my Chromecast. I was able to cast prime and Netflix yesterday with no problems

[arielucho]

I AM with the same problem since today with two chromcast

[MrSwindle]

Same here. It said it was having a firmware issue initially. Figured a factory reset would do the trick. Not this.

[Carmen326]

Same issue here! I've done the factory reset and even reset my wifi, but it still won't authenticate my devices. This started today.

[Ugh4]

Me too

[Santoshcattavar]

Even I am getting this issue. It says could not authenticate. 

[Karlarosarosa_]

O meu está dando esta mesma mensagem

[Neve]

Mine won't authenticate either. 

[Lalyc0]

Por aca igual, te respondieron algo. Lo van a solucionar. 

[Unico57]

Me pasa lo mismo, hasta ahora no hay solución 

[KrytiCat]

Same for me

[Prolificrecords]

How to fix

[Elonsmusket]

same

[Aninlia]

Previously, my chromecast was working fine and suddenly cant connect this evening mentioning issues about firmware. Then i factory reset my chromecast multiple times, plugged and unplugged, restart my router, reinstall google home app, try to add new device but keep saying "we couldnt authenticate your chromecast". What should i do to make sure its working again?

[Abvw]

Same issue here

[KarinaFM]

O meu também! Alguma solução?

[tozeguerra]

Same issue here

[Ceejay101]

Same here

[Magoo3]

Usato stesso iter procedurale, nessun risultato!!!

[Ralf75]

Hi, mine's doing exactly the same. Reinstalled home app and factory reset the Chromecast. Keeps coming up with unable to authenticate. Previously been working fine 

[Gabriela-Flores]

Me pasó exactamente lo mismo y ya intenté de todo nose que hacer ni con quien comunicarme

[Gabriela-Flores]

Hola! Necesito ayuda lo resetie de fabrica a mi chromecast  y  cuando estoy conectando el google home con mi chromecast me sale un error : NO SE PUDO AUTENTICAR TU CHROMECAST, ya intenté de todo, hice los pasos que me dio google soport, probé desde otro celu, desinstalé y volví a intalar google home y nada. AYUDA POR FAVOR

[mcgyver70]

Estoy pasando por lo mismo, no fueron todos los Chremecats, solo algunos. pero veo que es una falla en varios países

[Gettone1]

Sto avendo lo stesso problema anche io su entrambi i dispositivi chromecast. Sia audio che video. 

[Vels]

Brasil aqui é o meu parou do nada fiz reiniciei e agora só aparece essa mensagem dizendo que não consegue autenticar 

[Evando]

O meu chromecast também parou ontem à tarde. Sem solução ainda.

[Tarteaga]

Me pasa exactamente lo mismo. Hasta ayer funcionaba perfectamente y hoy no. He reiniciado el chromecast, la App, el wifi, y sigue igual 😔

[Gabriela-Flores]

Nose como comunicarme con soporte de google home para poder ver que solucion me dan

[Pablo79garcia]

Buenas, alguien pudo solucionar este problema? , me está pasando lo mismo y no se que hacer 

[Dave451]

Lo mismo me sucedió a mi hoy domingo 09/03 He hecho de todo y me sigue apareciendo "no se pudo autenticar Chromecast" pensé era problema solo mío, ojalá restablezcan ya o den una solución 

[NordicSpirit]

Why is every thread of the chromecasts having issues with authentication being removed? I have seen so many people, including me, writing about tonight.

[Jedibart]

I think they are getting consolidated?

https://www.googlenestcommunity.com/t5/Streaming/Chromecast-non-trusted-anymore/m-p/684554/highlight...

[Hush1]

What to do about it now? I am facing the same issue

[KaiNL]

I have the same, all of a sudden I can’t cast anymore from apps, but the background pictures are showing on my chromecast.

[Aplaplac]

Same here... One 3rd gen working, other three 2nd gen doesnt

[MattQ]

Same.  I was literally using my Chromecast Audio this morning to stream Spotify.
I know they ended the product in 2019 and said they'd keep releasing updates until September 2025 but it looks like a TLS security certificate on the device finally expired and they didn't update it to a new one.  Unless Google is willing to update the certificate the device is trashed... unless Google helps us transition it to the OpenSource community and maintain it ourselves. What a waste.

[NordicSpirit]

So instead of just scrapping gen 1 they're scrapping both? Maybe? Its so wierd that the information isn't put out by google themselves. To confirm the issue and give some form of response to their customers. Cause again, it seems like its worldwide

[RealtyPete]

Chromecast worked fine for years, can't connect now. Did everything factory reset, etc still won't connect. Says can't communicate with my Chromecast 

[Mardecel]

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