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.

[Allen1000]

iPhone cannot communicate with the device. It worked till several days ago. I removed the device from Home and tried to add it back, but after connecting it to my WiFi it says that my iPhone cannot communicate with it. So it doesn’t show up in my device list. How can I fix this ?

[JillG]

Hi @Allen1000

This is a known issue and you can read more in this pinned post from the Google Community Team:  Answered: Regarding an issue with Chromecast 2nd gen and Chr... - Google Nest Community  

[Abigail2]

Desde el día 9 de marzo pasado mi chromecast dejó de transmitir contenido, reinicié mi router wifi, cambié de TV y al final reinicié el equipo a modo fábrica, al intentar configurarlo me aparece un error de autenticación del chromecast. 

[Guille2]

Hola, a mí me ocurrió igual, respuestas?

[Guille2]

Desde el día 10 de marzo mi chromecast indica error de autenticación. Que puedo hacer para solucionarlo

[kel72]

Hasta donde se, es algo a nivel mundial.

No ví que Google dijera algo al respecto, y aún no hay solución.

Por lo que ví, es un problema de ellos, y nos jodió a todos en todo el mundo.

Tocará esperar a que lo arreglen, o quejarse con ellos, aunque no creo que eso solucione nada

[Guille2]

Hola, gracias por contestar, es probable que sea como tú dices porque son muchos los comentarios similares

[Gaston123]

Hola tengo el mismo problema soy de argentina 

[RubenPortillo]

Y no piensan pronunciarse??

[Mag12]

Meme soucy depuis 2 jours 

[LeoG999]

Buena tarde. He reseteado mi Chromecast 2nd Gen tres veces, pensando que el error era de mi dispositivo; luego encontré en internet el problema a nivel mundial. Un usuario aportó un tip para poder reconectar al wifi el chromecast, y esperar así, alguna solución remota de parte de Google. El "tip" es poner el calendario del teléfono con fecha 7 de marzo, y con Google Home, reconectar el dispositivo al wifi. Esto me sirvió para poner online nuevamente el dispositivo, y esperar algún parche al firmware o lo que sea necesario. Contenido no he podido transmitir, pero al menos este truco me sirvió para reconectarlo a la red wifi. 

[Gaonaak]

Mismo problema 😞

[doofyblue2025]

Soy de Argentina Neuquén y hoy 11/03/25 y desde ayer me dejó de funcionar. Voy a intentar el tips del calendario, a ver q sucede. Sdos!

[shelleylovsin]

both chromecast devices were working fine on sunday, then not working the next day.  have tried everything that the internet and google suggested for troubleshooting.  get to the point where it tries to connect with my wifi, says connected then immediately say something went wrong.  i have checked every setting on my iphone.  internet has not changed or nothing else has changed for that matter.  google home device and speaker still with no troubles at all.  getting kind of frustrated cause it shouldn't be this hard to figure out.  will there be a fix cause i don't think it is anything on my end!

[spozdny]

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

[Chrisboz]

I have two Chromecasts one audio one video, neither are working. Having rest one, to no avail, I discover that Google are telling us NOT to reset even though its their fallback instruction. I understand this is a multinational issue.  When are Google going to get this sorted please???

[Stigers]

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

[KlausReinemer]

What if I have 2 Chromecast 2nd gen. and I have firmware reset them regarding fault identification !?

[Novyz]

The problem is caused by an expired certificate when the fix will be announced by google you can set your phone's date to be before the certificate expiration date so that you can re-add the device and update the firmware. I'm not entirely sure if this will work but i hope so because i'm in the same situation as you.

[Olivier12]

My Chromecast Audio is not working anymore. Is there a solition?

[BJimmy77]

The top (pinned) post in this forum should explain:
https://www.googlenestcommunity.com/t5/Streaming/Regarding-an-issue-with-Chromecast-2nd-gen-and-Chro...

[KSCOTTYSONFIRE]

Dude…. Seriously ?

[BoRyden]

My chrome-cast regularly will go offline from the google home app while clearly being connected to wi-fi and displaying on my TV.

I have tried to rectify it by restarting the chrome cast unit, the wifi router and my iPhone. I’ve also tried to use my other phone (Samsung) and my iPad but it doesn’t work. None of the apps I’ve tried (Disney+, Netflix, Britbox and SVT Play could connect to the chrome cast either.

any ideas?

[Asialim87]

Bonjour,
J’ai le même problème, j’ai fait un reset sur le chrome caste et maintenant je bloque là « Chambre parentale est peut-être configuré, mais il est impossible de communiquer avec lui à partir de votre iPhone. Assurez-vous d'avoir activé l'accès au réseau local dans les paramètres de confidentialité de votre iPhone, puis réessayez. »

[Thompa99]

Got the same problem and after reset I can’t reconnect to WiFi. 

and my other cast are visible on router and from apps but not reachable for stream and from YouTube I get this message. 

unsecure unit.

Cromecast not able to verifyed 

it could depend on outdated firmware. 

[NizhoniNight]

Worldwide problem. If you did a factory reset (google posted to not factory reset, 24 hours after the problem started and to just wait for a fix from them) you can reconnect by setting your phone's date to a date before march 9th (march 8th or previous) then normal setup, then once connected reset to the correct date. You still won't be able to actually cast before Google fixes the problem though

[Vivek4]

Unable to cast since yesterday as getting the authentication error message while connecting to chromecast. Everything was working fine until 9thof March but since then unable to cast/connect with chromecast.

[Diux]

I've the same problem 

[LeoG999]

do NOT factory reset the chromecast 2nd gen; but if you did it (as I did), then use this "tip": on your phone (or tablet), force de date to march 7th, and then, using Google Home, add your device again. This way, you'll be able to put chromecast online again, and wait for some kind of fix from Google. It worked fine for me, but still I cannot cast (transmit) any content to the device...

[No20]

I tried this and it helped, thank you! Also can't cast anything though. 

[Julian77]

Since yesterday, the Chromecasts have unexpectedly disappeared from my Wi-Fi network. When I try to configure them again, I continually receive an error message that the device cannot authenticate with my mobile device/tablet. Following the instructions on Google Help, the factory settings have been restored. What will I do? It turns out that it is not advisable to do so. When will there be a solution to this problem?

[jatin2909]

Facing same issue from 3 days, it seems Google is purposely forcing us throw away old device and buy new expensive Chromecast devices..🙄🙄

[Ras2]

Jeg sidder med samme problem. Ved kun at min Chromecast er gammel...har også prøvet at konfigurere...men får samme fejlmeddelelse igen....noget med at den ikke vil godkendes....

[Max98]

Set your phone to march 8, you can get it back on the wifi but you can’t stream. We all have to wait till google comes with a update. 

[Chris9740]

My problem started yesterday. My home network can see it, but my Android phone cannot use it to Chromecast to my TV. So I restore it after trying different other procedures to connect the problem. Now, it gave me a message that I can not authenticate my device. 

[Davidgg]

Espero que Google no haga lo mismo que hizo con los Google home primeros que se los cargó

[Renata66]

Isso tb aconteceu comigo, a 2 dias não consigo conectar nada e qdo tento vem uma mensagem que o firewall está desatualizado.  

[Isrraresyes7]

Tengo el mismo problema de autentificación y también me paso asi de la nada 

[Elzassis]

Ha 2 dias atrás, meu google chomecast desconectou sozinho, reiniciei e depois como nao voltou, resetei e comecei a reinstalar, aparece a numeraçao mas quando chega o momento de configurar vem a informaçao que nao e possivel autenticar o dispositivo e manda contactar o suport.google.com/chromecast.

[heerooc]

Same issue here and we wait for Google to respond with a fix I suppose.