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.

[Ranjanqwe]

It is not working stating that we can authenticate your Chromecast .

Please can some help me what is going on.

[aniuskyaj]

A mi desde ayer tampoco me funciona

[Anyis]

Tengo el mismo error y es la única manera de ver mi tv donde vivo o comprar tv nueva con smart tv

[Smooch]

Same here. Melbourne Australia.

It won't authenticate all of a sudden. I used the chromecast Saturday night and Sunday its kaput. I've tried 2 chromecasts and same issue.

[Sala1]

Exact thing happend to me. Good till Sunday then nothing from Monday. Melbourne Australia as well.

[Yurich]

I also have a chromcast authentication error after the update.

[KNygren]

Same for me I did a factory reset but still same issue 

[pettoo]

Same here. I have 7 chromecast audio nowone works! Can somono on Google replay!!!!!!!!! 😞

[baward]

Hi,

Even though my Chromecast can be selected as an input source on my TV, I cannot configure it in Home. I have done a factory reset but still nothing. Any ideas?

[Ventidue22]

Global outage on Chromecast 2nd generation and audio, caused by Google. We all are waiting for them to fix it

[lawal_001]

Thank you Ventidue22

[Dada123]

Moi aussi,  impossible d'authentifier mon chromecast, ou de communiquer avec lui. J'ai tout reset.

Si vous pouvez prévenir quand ça refonctionne.

[LaurentD]

Salut, si tu veux le reconnecter après ton reset pour qu'il puisse se mettre à jour, il faut que tu changes la date de ton téléphone à la semaine dernière. Tu ne pourras toujours pas caster mais il sera connecté au Wifi en espérant que Google nous envoi un jour une mise à jour !!

[praveen_b]

Wonder why Google hasn't released any statement on the outage. Likely, they want to kill the product since it's not supported any more by Google. 

[コミー]

私は、スマホの日を3月7日にして初期設定が成功しました。見れるようになりました、壊れた日より前に設定すると成功すると思います。

[Matifora]

Manualmente, pon en tu telefono una fecha anterior al 8 de marzo de 2025.

Luego abres google home e instalas el chromecast. 

No vas a poder transmitir videos pero al menos vas a ver la pantalla con las imágenes, hasta que google actualice el fallo en los dispositivos.

[Matifora]

Manually set your phone to a date before March 8, 2025.

Then open Google Home and install Chromecast.

You won't be able to stream videos, but at least you'll see the screen with the images, until Google fixes the bug on the devices.

[DLHOUGHTON]

Seriously Google sort this out,just lost me as a customer. I have just brought a fire stick so seeeeeeeeee ya

[Sulu]

Yip, Google have 'bricked' it. RIP.

[jbird710]

I have 2 Chromecast Dongles ( gen1 and gen 3) and both worked fine with my iPhone SE (iPhone 5). I recently upgraded to an iPhone 16 pro and it does not see either dongle. Yes, they are on the same wi-fi; no my wi-fi isn't congested with too many devices (6 total); yes, my android tablet (Samsung) still works fine, yes I have check the Internet and tried every network setting I could find on the phone relating to the apps and network; yes I have tried resetting everything; no, I don't pretend to know everything, but I am a Cisco multi-certified network engineer.

I have tried removing and reinstalling Google home 3 times on the iPhone, verifying it has network permission, bluetooth is enabled, and the phone is less that 3 ft from the dongle.

I have tried factory resetting the dongle on 1 tv - it still works fine with the Android tablet and is seen on Google home on the tablet.

I'm fairly certain it's something to do with a setting on the iPhone, but NONE of the suggestions I've found make ANY difference.

I've had these dongles for years and never had a problem until the HDMI port on a tv went out, but I switched ports and it works fine.

My router sees the dongles, my Samsung tablet sees the dongles and works fine, the iPhone doesn't.

Looking for a constructive answer.

[Vilse]

Its not you its Google the certificate in your from cast is to old google for gotten to uppdatering it in time

[jbird710]

I believe you may be right. I had a spare that I used to replace the one in the den and it works. So BS that it works fine one day then suddenly doesn’t work the next day. Evidently something updated that made the den unit non-functional. Going to work on the bedroom tv next. Kinda makes you wonder if Google did something to it requiring it to be replaced.

[jbird710]

My problem turned out to be the dongle on my den tv has some kind of issue that affected my bedroom dongle as well. I had a spare that I had purchased while troubleshooting another issue which turned out to be a faulty HDMI port on my bedroom tv. I used the spare to replace the dongle on my den tv and my bedroom tv started working again. Not sure what is wrong with the den tv dongle; it is gen 1 and no longer supported. The strange thing is it worked the day before and a few hours later the next day, none of my devices could communicate with it. It still displayed the time and the screen photo would change as it always has. I could see it from my router on the network and, other than not being able to communicate with it, it appeared to be working. When I reset the dongle, it would not configure. At the step to connect to the network, it would never reconnect. Hope this helps others. Still don’t have any idea why it affected the bedroom dongle as well.

[Alicia2323]

I don’t think it’s your phone, mine was working fine with the 16 until it just stopped yesterday. No permissions were changed, and the phone still picked up the device but wouldn’t cast. I’ve rebooted wifi, factory reset device, tried to set up the chrome cast on an older device but nothing works. 

[clansky]

...google know....they partially solved.... but they are fixing all the related issues 

[Barbara84]

Dos dias. El peor soporte que he visto. Afortunadamente yo no lo reinicie xq vi muchos post que lo han hecho y les aparecia otro error, sin embargo muchos lo hicieron y es logico porque te dicen que ante el primer inconveniente hagas eso. MAS DE 24 HS DESPUES google aparece diciendo che.. no lo restablezcas.. es una verguenza.. verguenza global . Que confianza puedo tener con otro chromecast de otra generacion, que ni le paso lo mismo?? Que clase de soporte es este?? O SEA ES GOOGLE!!! Cero en comunicacion. Cero en soporte. Cero en una respuesta decente.

[JamesWelbes]

Your thread regarding the recent Chromecast issue says not to factory reset your Chromecast, and that they will push out an update to fix the issue. 

But the post does not address those of us who already factory reset our devices. 

What's going to happen to us? I have 2 chromecasts that I factory reset before seeing your post. How will they get an update now that they're no longer connected to my wifi, and can't get connected to Wi-Fi due to the issue?

[Sas3]

Hi, Set your mobile back to the date of 7 march. Then go to home app and set up the chromecast and connect with your wifi network. That worked for me. Don't forget to set back the date on your phone. Then you won't miss the update.

[LeoG999]

Hello. I use the mentioned date workaround (march 7th) and I could connect Chromecast 2nd gen to wifi, but yet there's no way to connect and cast my iPad apps (youtube, Disney+, etc) to chromecast.  I hope that Google fix this soon. Thank you Sas3 for sharing the "tip"

[Paula63]

Has there been an update on the Chromecast not streaming???  Will I get any answers if I call support?

[Jitendra_Kumar]

I just got home and found that I can’t cast to my TV anymore. It was working fine until the day before yesterday, but now my phone says that my Chromecast (2nd Gen) has an untrusted firmware. How can I fix this quickly?

[Tilly79]

I have the same problem and can't get it working 😡

[ssbb]

i have same proble is there any solution yet?

[clansky]

Not yet! I think they are still working on it. Anyway disappeared the warning on the main page

[asterisc]

I had the same problem and did a hard reset and now it won't connect to wifi so don't do that as I read yesterday that makes things worse.

[Anto4mori]

Ho lo stesso problema anch'io da ieri. Le ho provate tutte. L'ho anche resettato ed ora non riesco più a configurarlo. ☹️

[clansky]

Aspettiamo con calma. 

[joxyzan]

We have an older Chromecast that also stopped working yesterday: it didn't react to connection from our iPhones.

Did a factory reset and now it won't even connect to our wifi: "Something went wrong" says Home app on iPhone.

Seems many are affected?

[Ewake]

I am also experiencing this issue

[Markster]

I am also experiencing this issue. Was connecting fine this weekend, unplugged our projector to take to friends house to use with an HDMI cable, brought projector back home and now it won't connect and says something like "casting only available from certain websites" or something