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.

[EC3]

Google is working on it (they say). See Reddit for more info: https://www.reddit.com/r/Chromecast/comments/1j7lhrs/comment/mgzcw4e/

[Jennlilou]

Moi aussi depuis hier. 

J'ai tout débranché, tout redémarré et tenté la reconfiguration avec les paramètres d'usine mais après avoir éte "hors connexion", c'est maintenant l'authentification qui est impossible....

J'espère qu'on nous transmettra rapidement la solution.... 

[Terekeme]

Ich habe seit gestern auch gleiches Problem. 

Heute habe ich im Internet gelesen, daß Chromcast 2. Generation ab 2025 nicht mehr unterstützt wird und 3. Generation ab 2026.

Vielleicht deshalb???

[alvarenga7udb]

Here's a notification from Google Nest Team... in a few words... we have to wait 💀 https://www.googlenestcommunity.com/t5/Streaming/Regarding-an-issue-with-Chromecast-2nd-gen-and-Chro... 

If you did factory reset, please see this article, it served me well, as I also did a factory reset. This only works to get the google chromecast show the google stock wallpapers, but we still have to wait for the issue to be solved. Here's the article: https://www.googlenestcommunity.com/t5/Streaming/Did-you-factory-reset-your-CC-hoping-to-fix-the-tru... 

thanks to GiacomoMilazzo | Community Member

[SyedNoman]

too late to say "do not factory reset the device"🙄

[Lom]

Since March 9, 2025, users of Google's second-generation Chromecast and Chromecast Audio devices have reported encountering an "Untrusted device" error, preventing them from casting content from their smartphones or tablets. This issue appears to be isolated to these older models, while newer versions, such as the third-generation Chromecast and Chromecast Ultra, remain unaffected.

The Verge

Nature of the Issue

The error message displayed reads: "Untrusted device: [device name] couldn't be verified. This could be caused by outdated device firmware." This suggests a potential problem with device verification, possibly due to outdated firmware. Users have attempted various troubleshooting methods, including restarting, factory resetting, reinstalling the Google Home app, clearing cache/data, and trying different networks, but none have resolved the issue.

timesofindia.indiatimes.com

Google's Response

As of now, Google has not released an official statement regarding this specific issue. However, affected users have reported that Google Support is aware of the problem and is working on a fix.

The Verge

Discontinuation of Chromecast Devices

It's important to note that Google has officially discontinued its Chromecast line. In August 2024, Google announced it would cease production of Chromecast devices, shifting focus to the new Google TV Streamer. Despite this, Google committed to providing software and security updates to existing Chromecast devices until September 2025.

The Verge

User Concerns

The sudden onset of this issue has led to concerns among users about the longevity and support for their older Chromecast devices. Given Google's history of sunsetting products without much warning, some fear these devices may become obsolete sooner than anticipated.

timesofindia.indiatimes.com

Current Status

As of March 10, 2025, there have been no further updates from Google regarding a resolution to this problem. Users experiencing this issue are advised to monitor official Google support channels for any forthcoming announcements or fixes.

[paco1]

thanks for reporting this. its what is happening to my devices. I tryied everityng, now I restored the chromecast original settings, deleted all google home devices and I'm stuck in the with "Untrusted device" error

[Stef69]

Savez-vous comment faire ? C'est vraiment gênant... merci beaucoup 

[PanthereR]

Il faut juste attendre que Google règle le problème, en espérant que ce soit bientôt. 

[Zimzom]

🙏🙏 Thank u THANK U!! I can now let it go. There is nothing I can DO!! 4 hours of restarting. Uninstall apps. Download same apps. Unplugg and plugg back. And throwing things and going CRAZY. I'm done and I need fresh air.. Thank u again 🙏

. 

[KTunare]

Wtf....... I have a couple of Chromecast Audios that have been working like a charm. Yesterday I started to experience problems.... Please fix. I love my Chromecasts!

[ashutoshjoshig]

When we are expecting the bug fix

[CaetanoFabricio]

Ontem a noite meu filho tentou assistir o canal que ele segue no YouTube através do Chromecast na TV e não conectou, tentei por diversas vezes fazer a configuração e não conecta, não sei o que devo fazer!!!

[Shakey76]

Hi. My Chromecast Audio started frequently disconnecting from my network - I would need to reboot it several times a day, always at the start of being used, never during streaming.

I did a factory reset any now I can't set it up at all. I've tried multiple devices (Pixel 6a, iPhone se, android tablet), all recognise the device but cannot communicate with it at the first step of setup. I tried an older iPad (ios12), this used an older version of the Home app and got so far as trying to connect the CCA to my WiFi, but then gave the same message 'cannot communicate with device'.

In desperation I've used a different power supply and cable, but same result.

I have a sky router and I've tried disabling sky shield and changing security to WPA2 (as advised on one forum), no change (I would have been surprised if there was as it had worked before).

Feels like a settings rather than device issue, but I have no idea what settings have changed since I last set it up (moved house and broadband provider in Nov, so it wasn't a long time ago).

Thanks in advance for any help.

[KTunare]

Seems like something happened yesterday: https://www.googlenestcommunity.com/t5/Streaming/Chat-gpt-informs-about-the-chromecast-problem/td-p/...

[AvadhSahi]

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

[PauDO]

Tengo el mismo problema y pido solución para Google contra la obsolescencia programada. Que querer vender nuevos dispositivos es una cosa y otra dejar los antiguos sin funcionar. Se pretende que todos los usuarios tiremos lo viejo para comprar lo nuevo. Y dónde está la sostenibilidad? Las cantidades de plásticos que llenarán nuestros mares y tierras. Exijo una solución favorable a Google. 

[Albrech23]

A mi me pasa lo mismo, me pone que tengo que actualizar firmware del. Dispositivo obsoleto. Como se hace eso? Si tampoco te sale en ningún sitio como actualizarlo? No entiendo nada. 

[Kapil1]

We couldn't authentic your Chromecast. Please help.

[Ola3]

Samma problem här . Prövat allt . Förstår inte felet . Uppdaterat home app men funkar ändå inte . Samma felmeddelande som du . Fungerar fram till sökningen .

[Carletti]

Have the same problem, how can I solve it?

[Wesly126]

Sinds gisteren geen verbinding meer met de chromecast. Resets geprobeerd en app opnieuw geïnstalleerd. Maar melding blijft komen dat de chromecast niet kan worden geverifieerd.

[Irfanmoy]

Same issue here. Tried all possible options.. restarting modem, resetting chromecast, and also switching to Chromecast wifi.

Google home can identify chromecast but fails to set it up. Throws cannot authenticate error.

[Lom]

Correct same her i Norway. How to inform Google? 

[Lom]

Klopt ook hier in Noorwegen. Hoe Google informeren? 

[Bas3]

Ok, nou het probleem is bekend bij Google. Het gaat om een cerlopen certificaat in de firmware. Waarschijn gaat het nog een paar dagen duren, voordat Google een firmware update pushed.

Aangeraden wordt, om je chromecast niet te resetten. Want dan verbindt hij helemaal niet meer met internet. 

Om je Chromecast weer te connecten, daarvoor is een "workaround". 

-Zet de datum van je telefoon 1 dag terug,via settings.

-Je krijgt dan foutmeldingen van andere apps, dat de datum niet klopt, maar dan kun je je chromecast WEL weer koppelen aan het internet, via de app HOME. 

-Zet de datum weer terug naar vandaag.

Dit werkt, omdat gisteren om 16.38uur het certificaat is verlopen.

Je chromecast is dan weer verbonden met het internet, verder is het afwachten tot Google de firmware update klaarheeft, en naar je chromecast pushed. 

Succes jongens, vanavond maar een boek lezen denk ik haha

[Lom]

Prachtig, dit werkte. Bedankt🙂

[Gochel]

Helaas had ik de Chromecast al gereset. Datum terugzetten werkt bij mij niet. Kan geen verbinding via wifi met modem tot stand brengen. Lukt niet om met het absoluut correcte password verbinding te maken. Dus maar geduld hebben en hopen.

[Jerryaplex]

昨晚我本來投放Youtube 影片都沒問題，但要投放下一部影片時手機突然顯示"無法通過驗證，可能是因為裝置韌體過舊"(我不確定英文是不是這樣顯示)，後來試了幾次後我決定重製他，結果現在無法連接這個裝置，當我以為是不是壞了的時候，我再拿家裡另一個來重製，現在兩個裝置都無法連接了，在連接過程中都找的到裝置，但會卡在後面"正在連線至Chromecast" 這個步驟，會顯示無法連線至，大家也一樣嗎?

Last night, I was casting YouTube videos without any issues. However, when I tried to cast the next video, my phone suddenly showed a message saying "Failed to verify, possibly due to outdated device firmware" (I'm not sure if this was the exact wording). After trying a few times, I decided to factory reset my Chromecast. But now, I can't connect to the device at all.

At first, I thought my Chromecast might be broken, but then I tried resetting another one I had at home, and now both devices are unable to connect. During the setup process, I can find the Chromecast, but it always gets stuck at the "Connecting to Chromecast" step and eventually fails to connect.

Is anyone else experiencing the same issue?

[Samayoa]

Si de igual forma me a pasado no conecta me dice que no puede autenticar.

[Revilo4_19]

今天家裡的也發生一樣的問題…重置無效

還在找解方

[Linkai]

一樣的問題，不曉得怎麼處理

[Shawn1022]

我有一樣的問題。剛剛看了看他們英文問題列，猜是他們官方搞事。可能得等一陣子了。

[斗南大番薯]

一樣 到現在還沒好

[侯佑承]

我也是遇到一樣的問題

[WuSi]

我也是一樣的問題

[Lunghao]

相同的問題，不知道是不二代已經停售的關係。不過應該不會這樣，因為舊的andriod系統雖然我無能更新，但還是可以運作。google 應該也沒必要比，把這個商機讓給其他電視棒品牌。

[CC116]

我的昨晚打開電視後也是突然連不上wifi,如您敘述的一模一樣操作,google home也無法重新設定,一代chromcast 不能用了嗎?

[LauranceHsu]

Same here, so sad.

[Jerryaplex]

使用中文的各位，相信你們應該也爬文到其他篇文章，似乎是原廠當時出產產品時就在程式裡面埋下了個定時炸彈，我不認為他們會/敢讓舊產品就再也不能用，會被吉死吧，不過確定的是我們重製的這些人後續復原工作會更麻煩.......