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firmware version 1.56.275994 cannot connect to 5GHz WiFi

theolin
Community Member

firmware version 1.56.275994 cannot connect to a 5GHz WiFi, only works on a 2.4GHz WiFi.
reset to factory doesn't work, still in version 1.56.275994, plz help

2 Recommended AnswerS

hiluke
Community Member

There is a known issue in the latest 275994 firmware affecting Chromecast 2, Chromecast 3, Google Home, Google Home Minis that breaks connectivity on the upper range 5GHz channels (149-165).

Even though Google have advised me this is a known issue, they are continuing to roll this firmware out.

There are two sub-optimal workarounds available until Google fix this defect (use a lower channel 5GHz network or connect on 2.4GHz).
See: https://www.googlenestcommunity.com/t5/Chromecast/Chromecast-2-doesnt-connect-to-wifi-5-ghz-band/m-p...

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Ashepherdson
Platinum Product Expert
Platinum Product Expert

Set your wifi channel for the 5ghz to below 149 and this should fix the issue for you, if seems to have worked for everyone else ! 

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15 REPLIES 15

Ashepherdson
Platinum Product Expert
Platinum Product Expert

Can you try rebooting your router to see if can connect once you do that?  Is your 5ghz network a seperate name from your 2.4 GHz ? How far is the router from the Chromecast , as 5ghz has a much shorter range?  

I tried reboot router, update router firmware, no work.
5GHz and 2.4GHz are separated SSIDs.
Chromecast is located under 5 meters from router.

It has connected to 5GHz and worked for 6 months or more. the problem happened about 3 days before now without any configuration change. 

There are some people have same problem under the post below.
https://www.googlenestcommunity.com/t5/Chromecast/Chromecast-no-longer-works-after-firmware-upgrade-...

Ashepherdson
Platinum Product Expert
Platinum Product Expert

What type of router are you using ? I ask as I am on latest firmware with all my chromecasts and they still work with 5ghz.. so it may be an issue with the router or a setting specific that is causing the issue.  

I am using ASUS RT-AX68U. Here are some config parameters maybe affect.


Wireless mode: Auto (N/AC/AX mixed)
802.11ax / WiFi 6 mode: on
WiFi Agile Multiband: disable

Bandwidth: 20/40/80 MHz

Channel: Auto (149)

Extend Channel: on

Authentication: WPA2-Personal
WPA Encryption: AES
Protected management frame: disable

WPA group key rotation interval: 3600


I need to know the new features about fw ver. 1.56.275994 to figure out the solution of  this problem.

 

Ashepherdson
Platinum Product Expert
Platinum Product Expert

Will escalate to team as I do t have access to the changelogs !

hiluke
Community Member

There is a known issue in the latest 275994 firmware affecting Chromecast 2, Chromecast 3, Google Home, Google Home Minis that breaks connectivity on the upper range 5GHz channels (149-165).

Even though Google have advised me this is a known issue, they are continuing to roll this firmware out.

There are two sub-optimal workarounds available until Google fix this defect (use a lower channel 5GHz network or connect on 2.4GHz).
See: https://www.googlenestcommunity.com/t5/Chromecast/Chromecast-2-doesnt-connect-to-wifi-5-ghz-band/m-p...

theolin
Community Member

I changed  5GHz Wi-Fi channel from 146 to 36 and now Chromecast 2 can connect to 5GHz.

Thanks a lot! 

Egaspar
Community Member

I changed wifi channel to a value below than 149 and now it works.

Does anyone know if there will be a fix to this issue?

Kamille
Community Member

My 2.4/5GHz WiFi are same SSID.

Chromecast 2 still down with 1.56.275994.

Dec 25

Ashepherdson
Platinum Product Expert
Platinum Product Expert

Set your wifi channel for the 5ghz to below 149 and this should fix the issue for you, if seems to have worked for everyone else ! 

Yes! Now it works!

Thanks a lot!!!

Ashepherdson
Platinum Product Expert
Platinum Product Expert

Awesome great news!

Jeran
Community Specialist
Community Specialist

Hey there,

Did you have any more questions or need any additional help?

Thank you,
Jeran
 

Jeran
Community Specialist
Community Specialist

Hey there,

Did you have any more questions or need any additional help? If not, I'll go ahead and lock up this thread in 24 hours.

Just checking up,
Jeran
 

Jeran
Community Specialist
Community Specialist

Hey there!

We haven't heard back from theolin, and it's been a few days, so I'm locking the thread. As always, feel free to make a new thread if you have any more questions or concerns.

Thank you for your help, Ashepherdson and hiluke!

Best regards,
Jeran