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.

[tigur11]

It still not working, this helped surely for some relief: https://www.googlenestcommunity.com/t5/Streaming/Regarding-an-issue-with-Chromecast-2nd-gen-and-Ch...

[GabiReyes]

Same in California. 

[ToastedGoatee]

Still no fix?   They can't just brick out our device like this

[Jam-Min]

https://www.androidauthority.com/how-to-fix-chromecast-authentication-errors-workarounds-3533849/

[Snackpac121]

https://mensfeld.pl/2025/03/bringing-your-chromecast-back/

[Pamaga71]

Hola yo tampoco puedo... Cuando se va a poder arreglar ésto??? Gracias 

[ihatechromecast]

Chromecast is rubbish. Mine doesn't work more often than not. Waste of money.

[ihatechromecast]

It's a shame Google aren't as interested in resolving issues as they are in handing out BS badges.

[Macedo]

Chromecast desde domingo dia 9/3/25 parou de funcionar abruptamente, quando ele estava antes bom. Não encontro qualquer atualização do Google para o problema, mas é um produto Google e ele tem a responsabilidade de resolver tal qual teve a responsabilidade de me vender. 

[Isaqh]

The same **bleep** happen to me…in Italy, it doesn’t work. Nothing…customer care inexistent…

[Leqosie]

Hi

[Khalidhussain11]

facing same issue with chromecast gen 2.😞

[Mainardi]

Same here.
I have 2 2nd gen Chromecast that stopped connecting the wifi.
My google Nest works perfectly, but the 2 old ones keeps showing as offline.
I tried the factory reset, but it doesn't connect to properly working wifi.
Any chance to have an answer?

[DaisySA]

Found a Work Around for me

My Amazon Fire Stick works fine

Google should have resolved this issue by now which makes me think it's INTENTIONAL

[smawani]

Chromecast authentication issue, here’s the latest update as of March 12, 2025:

• Current Status: The authentication error affecting second-generation Chromecast and Chromecast Audio devices is still ongoing. This issue, caused by an expired authentication certificate, prevents these devices from connecting to Wi-Fi or completing setup, especially after a factory reset. Google has acknowledged the problem and is working on a fix, but no official solution has been released yet.
• Temporary Workaround: Some users have had success with this temporary trick to bypass the certificate issue:
• On your phone, go to Settings > Date & Time and turn off automatic date/time.
• Manually set the date to March 8, 2025 (before the certificate expired).
• Open the Google Home app and try setting up your Chromecast again.
• If it connects, switch your phone’s date back to automatic.
• Note: This workaround isn’t guaranteed to work for everyone, and even if it does, some apps might still have trouble casting. It’s worth a try, but you might need to attempt it a few times.
• Avoid Further Factory Resets: Google has advised against performing factory resets on affected devices, as it can make recovery harder. If you’ve already reset your device, avoid doing it again.
• Monitor for Updates: Check Google's support page and forums like r/Chromecast for the latest news on a fix. Since this is a widespread issue, a solution should be on the way soon.
• Need More Help?: If you’re stuck and need assistance right away, reaching out to Google support might offer more tailored advice for your specific case.
• If you or anyone else needs further help, feel free to reach out—I’ll be here to provide more info or support as needed!

[Indireddysankar]

Same for my home TV with chromecast device was working till march 10th then after gone , it’s not working anymore 

[Joe59]

Same thing happened to my Chromecast. What's going on everything was fine last week.

[Stecura]

Having same issues past 3 days driving me crazy. I tried factory reset no avail 😕

[epdavidg46]

My tv won’t cast issue with firmware

please let me know when. You get it fixed

at my e-mail address Please hurry!

#

[ReArruda]

Sou do Brás e está acontecendo o mesmo comigo.

[Bnm1]

All mine have disconnected. They are connected to my wifi network, but showing as disconnected in google home. YouTube music is suggesting an outdated firmware issue

[Rishi17]

Even after 12 hours same status not working - no solution 

tried calling got a call but no one available 

seems like they have stopped the support as well

[JoTexas]

Same thing here in Texas.  Factory reset and still will not authenticate.

[JoTexas]

By the by, I use a NC2-6A5, 

Firmware: 1.56.275994

[JillG]

Hello everybody!

OOF. Seems to be a very widespread issue. FYI, the Community Specialists have been notified and I pinged our Community Manager. 

Appreciate all your posts and info and they will see each reply.

HOPING for a really quick fix.

Jill

[Mum1]

It's been 9 hrs since you've posted this and mine has just decided to have this problem 30 mins ago in Australia. So how long is this going to take? 

[Nmr916]

I am having the same issue, 3 chromecast audios showing offline, I removed them from my home app, did a factory reset on them, robooted my router, connected from the same 2.4ghz network, cleared app cache and storage, tried to readd them, but get a "we couldn't authenticate" message. Can't check firmware version because the home app shows it as offline despite one still being connected to my router's wifi

[DropbearRob]

Similar work flow. But with Chromecast instead of Chromecast audio

[Bas3]

My chromecast stopped working. Is google punishing me for watching porn last night? 😄

[DropbearRob]

They know from the type of porn that you'd enjoy being punished. So no... They're far more sadistic than even the porn you were watching last night. 

[SamuelT]

Malmö, Sweden. It's the same crap going on here. And the only, useless, so called "help" that is available in the help pages of chromecast.com doesn't address the problem. 

[PelleJ]

I have  the same problem in  Jönköping, Sweden. Gen2.

[Beto_Lima]

Acabou de acontecer comigo, Já tentei de tudo! Reiniciei o Chromecast no modo fabrica, Desintalei e instalei o Google Home e tentei configurar a Casa, mas quando vai conectar no Chromecast dá a mensagem: " Não é possível autenticar o Chromecast. "

[Beto_Lima]

Minha dúvida é que se o Google parou de vender em 06/08/2024, eles vão dar suporte para eates aparelhos da segunda geração?

[Hater_chromecas]

Chromecast suddenly lost connection with our phones. We started troubleshooting and ended up resetting it back to factory settings. Now we are unable to setup as Chromecast disconnects from Wifi during setup because "The google home app will use a temporary Wi-Fi network to connect to your device" 
At that point the  setup stops because  we "lose connection with our phone".


 

[Reneen]

Same for me

[Bhorta]

I have two Chromecasts 2nd gen that have worked perfectly well for years. Today (March 9th, 2025), they stopped connecting showing a message related to firmware not reliable.

I've already:

• checked internet connection
• restarted router
• cleared Google Home chache
• reinstalled Google Home App
• reset Chromecast, but  it won't authenticate, showing this message: https://drive.google.com/file/d/1IDL09f3lK_95MaMZ0hetSPAqWvJY40Cd/view?usp=sharing 

My other Chromecast, which was not reset, shows this message when I try to cast: Device not reliable:  the device firmware might be outdated. Both worked perfectly well this morning.

I also have a FireStick, and it is working perfectly well, which seems to rule out connectivity issues.

Please, help! I thank you in advance.

Bruno

[Everpowerfule]

Yeah mine also. 

[Floren]

Use el Chromecast sin problema hasta ayer. Hoy dejó de funcionar. Me dice que no se puede autenticar. Ya probé de hacer todo lo que indican, reiniciar el wifi, el celular, el Chromecast. Nada funciona 

[Me08]

Me pasa lo mismo hoy