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.

[Mahendarsb]

Hi, since yesterday we and many more global user facing following issue as they are unabke to connect sync cast mobile deive to chrome cast connected device. 

TV couldn't be varified. This could be caused by outdated firmware 

Kind help us as our TV is not smart TV wothout chrome cast TV is not usable for us. 

[Raobandla]

Yes, me too

[FredFredBurger]

So I have this issue.

my chromecast has worked fine for many years, yesterday i could bot connect - so I choose to reset my chromecast. But when I try to connect to the wifi, it says that i have to give access to my local network, it gives the option to go directly to the place in iphone settings where you can s itch it on and off. I have switch all access option on “bluetooth, local network even camera” but i can’t get past this point.

It also says i cant communicate with my device “iphone” .. I have tried to turn my phone off and the wifi off… but nothing seems to work. Please help me

[MonicaG]

I have the same situation since today. Tried everything: updated Google Home app, reboot Chronecast 2, turned off and reopen the IPhone, reboot the wi-if extender. Nothing worked. It just does not connect to wi-fi. 
Hope that someone will come to a solution, I am totally helpless….

[Anonymous]

Hi, same problem for me

any solution ?

[Lmmm]

Unfortunately  the whole world is waiting for Google to fix this problem......

[boomjam]

Hi,

My 2nd Gen suddenly disconnected from the router and I haven't been able to figure out how to re connect.

Router SSID Has not changed and has also been rebooted.  Chromecast has been factory reset a couple of times.

Tried via Google Home app on iPhone and it got to the connect to wifi screen before the chrome cast would be stuck on "connecting" and then iphone will say "something went wrong"

When tried with ipad google home app, chromecast would show the 4 digit pin but the ipad wouldn't even show that.

Chromecast's SSID is broadcasting, not sure what other steps i could take here

[Alex34700]

Bonjour 

Depuis hier je n arrive plus à connecter mon chromcast sur mon téléphone.  

J ai tout débranché, rebranché ...rien y fait . 

[M-ali]

Chromecast is not connecting.  Authentication error.  Any solution ,?

[Mubin_Mardokhy]

So Thats a GLOBAL Problem Started From Yesterday, As Today No solution, but google is trying to fix it👍🏻

[Mubin_Mardokhy]

Hello, so yesterday i went to use my chromecast and watch a Video on youtube, I saw that my Youtube Chromecast couldnt work and said its "not verrified", i thought its a random bug i went to reset it and it said "we coudlnt authenicate your chromecast", then i asked google it said Factory Reset it , it maybe works, so now i saw that they say not to factory reset, Does That Mean My device wont get fixed?

[Claudiacappa]

Ho lo stesso problema 

[Questyn]

As I, many people did a factory reset. It's a normal logical procedure. 

Google knows this and will come with a procedure for this. 

If you don't want to wait for that, yo might try what I did;

I set the time on my android mobile to an earlier date. Then I installed, with google home, the chromecast. That worked. BUT... it won't change the cerificate problem, the main issue, and we won't be able to cast. Hope, I could help you a bit with this answer.

[Mubin_Mardokhy]

Thanks man, i was worried that i couldnt use my chromecast anymore♥️

[bronny]

what announcement ?

[Mubin_Mardokhy]

People online say that google said to Not Factory reset

[Munmun]

It would have been helpful if you have announced this earlier or at least made the issue known to your customer service.

[Cam9]

Bonjour, 
C'est un peu tard lorsqu'ils préconisent de ne pas réinitialiser le Chromecast aux paramètres d'usine... (J'ai eu la même réponse dans un mail daté d'il y a 2 heures)
Communication un peu défaillante quand même, beaucoup trop tardive 😞
Qu'adviendra-t-il pour tous les Chromecast réinitialisés? Nous devrons les mettre à la poubelle?
Wait and see comme dirait l'autre mais bon.
Perso, je suis allée m'acheter un Fire stick Xiaomi 🙂

[earlbr51]

Spent hours trying solutions. Tried other chromecast, changed hdmi ports, factory resets, reset router... nothing! Deprived of TV for the night. Horrors! Not sure how the fix will be communicated. Any information?

[WillIV]

Nothing yet. Google support posted in here earlier that they were working on it. Luckily I have an ultra that wasn't affected so wasn't totally down. If I see anything I'll post back in here. Trying to keep an eye on Reddit and Google blogs to see who makes an announcement first 

[StanJones]

Contacted Google. They pushed a new firmware yesterday and admitted they had this problem globally. They are working to fix the issue. 

[Raf0]

Kanno risposto troppo tardi. Molti hanno già ripristinato il dispositivo perché consigliato nelle risoluzioni dei problemi.  E ora chi ,come me ha ripristinato il dispositivo che fa?

[GiacomoMilazzo]

Metti indietro la data del telefono (es. 8 marzo) con l'impostazione manuale. Stacca la rete dati ad evitare aggiornamenti automatici.
Riuscirai a rimettere nella tua rete wifi di casa il CC. Sarà comunque inutilizzabile per i problemi di casting ma almeno è online tante volte servisse per eventuali fix del problema.

[Nadders22]

Yes I’ve had same phone, same TV, same internet and same chrome cast for past 4 years. Now suddenly Google Home can’t connect the device to my iphone. It stinks that no announcement was made or notice given that the my chromecast Gen 2 is now obsolete. I knew they were discontinuing chromecast but this is fresh BS! 

[Valcam]

Hi from Italy. 

Same problem here since sunday

I done reset to factory data and then reconnected the Chomecast by setting phone date before march 8, but, as known, doesn't work yet.

Wait for Google solution

[Alicep]

I think the problem will be solved by buying an Amazon stick! 

[andregyn29]

Mesma situação com meu dispositivo Chrome cast geração 2

[epdavidg46]

Fix this fast basketball is soon!

[epdavidg46]

Fix it fast!

[JillG]

Hi @matthieubrucher and all,

I will escalate this to our Chromecast team. 

In the meantime please try to restart or reset your Chromecasts.How to factory reset your Chromecast or Google TV Streamer - Android - Streaming Help  

Can you let us know the device you are using, your region and the Cast firmware version. (Device info, Tech info)

Thanks!

[Sandy28]

Quando será solucionado?

[Carstenk]

Have tried that of course. 

Firmware version? No idea. On the screen saying 0625. Another time it was 3574. Same Chromecast 

[Kurtmieville]

Hi there. It's a gen 2 chromecast

Technische Informationen

Version der Systemfirmware: 275994

Cast-Firmware: 1.56.275994

And several chromecast audios were I can't get to the version information any more.

[Bobsy]

Have reset router, phone, and Chromecast and still getting the issue. 

[Juliazedi]

I’m in Sweden, Gothenburg. Doesn’t work here.

I just have the standard old chrome cast, like 1st or 2nd gen. Really old. Cant find the info in the app from it, but system firmware version is 275994.

thanks! 

[RomulusM]

the same issue for Chromecast gen2 , from Romania, "we couldn't authenticate your Chromecast...."

[Joseire]

Happening in Ireland. Cast firmware 1.56.275994. system firmware 275994. Chromecast won't reboot either from the Home app.

[Redplum]

Re-booted router / chromecast, still unable to authenticate. Based UK. Not sure what version or firmware. 

[morf]

Reset all devices...now I can't connect any chromecast to google home. Model RUX J42.

[Rodrigo33]

When you reset the device you cannot reconfigure it because it throws an error when trying to do so, which means you are unable to use the Chromecast device at all.