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.

[Danishmadara]

It seems like the issue is from Google. I changed the date to yesterday and I can add the chrome cast back. It’s still not working but this confirms it. 

[MJCORBS]

This is just happening to me. It’s so frustrating! I’ve tried everything, but there seems to be no fix. Very annoyed!

[Danishmadara]

Yup, not sure what’s taking Google so long to fix

[fdodq]

I have the same problem since yesterday (March 9th 2025)

[mravelo10666]

ohh I though only me happen this, let me know if have already solve for this matter,

[kbrzw]

I’m experiencing the exact same thing since March 8th, 2025. I was on the phone with Roger’s for an hour thinking it was my wifi, but we exhausted all options and the issue seems to be with Google. When you request a call from customer service they don’t actually call you?

[Franimal]

Same issue still ongoing. Have also factory reset, checked all settings and called broadband provider. 

[Davenuerge]

I factory reset three of my four Chromecast audios before I found this post.

[WTFonchromecast]

Do not factory reset your device -  Totally BS non-sense. You should update your help web pages, it said factory reset your device.  😡😠😠

[WTFonchromecast]

Do not factory reset your device -  this is totally Non-sense. your help website said, factory reset it and I did it !!! 😡😡😡

[LauranceHsu]

所有排除錯誤文檔說明，最後一個都是重置裝置，現在才說不要恢復原廠設定是否太慢？

早就不知道重置幾次了

[BillyinTO]

Already tried factory reset... Anyway, please fix it ASAP. And please let us know ASAP. 

[Firemonkey]

How will you notify us?

[LeoStuart]

Hi Team Google Please Fix the Certification thing and get the Google Chromecast started it has stopped working since over 12 hrs now have reseted it multiple times but it's not been able to connect thru phone... It just says can't recognise and connect to support... But even there there is no help... Offered

[Primrose]

The same thing is happening with ours.  Tried factory reset multiple times and everything else google help

sugested

[Selene1169]

Same thing happened to me, and I did exactly the same as you did. Have you received any information about the problem? It was ok yesterday night...

[SaskatchewanD]

Ditto. The most useful thing I’ve read so far was on an outside source which suggested doing a factory reset as we’ve all instinctively tried is a bad idea because it will be harder for the device to get a firmware update. I hope this isn’t the case, but I’m anxious to hear *something* from Google. Even to the extent of a vague description of the true nature of the problem and what’s being done about it.

[JJFoo]

Same for me and thousands of others reporting the same issue via Reddit.

According to several users there is an expiration date in the code that needs to be fixed... hopefully it's being fixed. People are reporting the very same problem from all over the world. Here is what a user wrote from looking at the code...

"...There's our problem:  *(Not After: March 9th sixteen, forty four, thirty nine of this year GMT!) Google issued an intermediate CA, presumably the one for all 2nd-gen devices, with a validity period of only 10 years, and it just expired. As a result, none of Google's official clients succeed in validating the device as genuine and they refuse to talk to it, including during initial setup.

Google can fix this. Not by rotating every device's auth certificate to a new CA, which would take significant development work and is probably infeasible, but by hardcoding the fingerprint of the problematic CA into their clients and either pinning it as a root of trust (in which case the expiration date is ignored automatically) or ignoring its expiration date when performing device auth. I expect them to do exactly that," 

I'm hoping someone at Google reads this and takes the suggestion and/or fixes this on the quicker side. I think a whole lot of Google users are assuming this was done on purpose and ready to throw in the towel on any Google products. Folks are tired of feeling scammed by big corporations. 

Fingers crossed it was an oversight and they'll fix it asap.

*note:  system wouldn't let me send a reply with the (actual coding due to the date/time) and numbers I guess 

[Lom]

Thanks for your answer. Wished I read it yesterday... 

[JJFoo]

LOL, me too! 😂

[Rschomaker22]

Thanks for post. It helped better than any google responses. I had problems with second generation chromecast and audio. Today my audio reconnected but not my chromecast tv. But I did reboot tv and not audio. 

[lankylad]

Same problem here in the UK . Had also affected my Chromecast audio

[DLHOUGHTON]

It's been over 24 hours for mine,I'm fuming haha

[LeoStuart]

@GoogleNestTeam This is not done... All of a sudden all my streaming devices stopped working... I fixed to Resety Mi Home Speaker and it started working but the Main issue is with My Google Chromecast 2nd Gen Where after multiple attempts I am unable to connect... And it says unable to recognise... Or your wifi couldn't authenticate... Kindly check and fix this issue i want to run my but and I can't sit without running my adds on my TV... Please fix this issue asap

[Manu1210]

Estoy en la misma... Me sale que no se puede autenticar el Chromecast

[Sully4]

Ayuda por favor todos tenemos el mismo problema, que está pasando que no se puede autenticar el chromecast 

[Caromaurelli]

Por favor hagan algo o acaso quedaron obsoletos nuestros chromecast?

[Nicco61]

I have had a chromecast that was been working fine, then it suddenly stopped connecting. I did a WiFi reboot and all the work arounds including resetting the Chromecast to factory settings using the side button and unplugging. When the device is on I can see it as a new Chromecast in my app, and after my phone discovers the device I receive a a connection Failed message when I’m supposed to confirm a code on the tv screen. Everything is connected to the same WiFi, as I can verify looking at my WiFi app. Please help!

[LexiC]

Mine did the same, I did a factory reset and now it's saying it can't authenticate my device.... I guess several people having this issue 

[Cherb]

Exactly the same as me.....

[Peg2]

Bonjour pareil pour moi tout fonctionnait parfaitement hier 

Puis hier soir impossible de caster j'ai tout tenter hier soir je m'y colle a nouveau aujourd'hui sans succès je cherche mais impossible donc je suis les réponses qui pourrait vous être donné 😞

[EFx]

Ok, same here. I was getting frustrated that "help" was being spectacularly not "fit for purpose"  as I was getting nowhere and every time I followed the "help" I was getting the "couldn't authenticate" error message. Grr!  Glad it isn't just me. Sad that  others are also frustrated and that "help" can't actually acknowledge there is an issue that they should have picked up on and resolved by now. 

[harsha131]

Mine did the same two hours ago. I was rebooting and trying evening. But not success. I dont know why. The device says as authentication failed.

[Kghost]

Same authentication failed message

[Theaea]

The same thing happened to me yesterday. Was using it earlier in the day, and suddenly couldn't connect..

[Kghost]

A bit more research seems to indicate there's a bit of code that refuses to recognize and authenticate the early Gen Chromecast after 10 years...

Without a patch from Google what it amounts to is obsolescence for a perfectly fine 10 year old product...

If that's the case I won't be buying anything from them again.

[Cherb]

So it's permanent? And they knew this would happen and no notification....that's it for me too then.

[Sully4]

Chromecast dejó de funcionar, lo desconecté, lo reinicié, y volví a seguir los pasos de instalación y sale un error de no se puede autenticar el chromecast.

Estoy leyendo en la web que es una caída global del sistema, que ya google le dió de baja al sistema definitivamente.

Que alguien de google responda por favor

[cachamex]

Tengo el mismo problema con 3 chrome. No es posibl÷ que dejen de soportarlo de la moche a la mañana

[franco3]

yo tambien tengo el tercer generacion y tambien me hizo lo mismo ayer .,...