topic Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi in Streaming

firmware version 1.56.275994 cannot connect to 5GHz WiFi

theolin — Sat, 04 Dec 2021 13:47:50 GMT

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

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

Ashepherdson — Sat, 04 Dec 2021 17:00:53 GMT

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?

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

theolin — Sun, 05 Dec 2021 04:04:56 GMT

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-to-1-56-264660/m-p/18750/thread-id/1809/highlight/true

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

Ashepherdson — Sun, 05 Dec 2021 04:42:28 GMT

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.

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

theolin — Mon, 06 Dec 2021 01:10:23 GMT

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.

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

Ashepherdson — Mon, 06 Dec 2021 01:47:47 GMT

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

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

hiluke — Mon, 06 Dec 2021 23:51:32 GMT

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/55955

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

theolin — Wed, 08 Dec 2021 12:32:42 GMT

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

Thanks a lot!

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

Egaspar — Tue, 14 Dec 2021 19:52:59 GMT

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?

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

Kamille — Sat, 25 Dec 2021 05:07:51 GMT

My 2.4/5GHz WiFi are same SSID.

Chromecast 2 still down with 1.56.275994.

Dec 25

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

Ashepherdson — Sat, 25 Dec 2021 10:52:24 GMT

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 !

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

Egaspar — Wed, 29 Dec 2021 20:58:21 GMT

Yes! Now it works!

Thanks a lot!!!

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

Ashepherdson — Wed, 29 Dec 2021 21:19:21 GMT

Awesome great news!

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

Jeran — Wed, 26 Jan 2022 23:47:07 GMT

Hey there,

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

Thank you,
Jeran

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

Jeran — Tue, 01 Feb 2022 16:53:46 GMT

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

Re: firmware version 1.56.275994 cannot connect to 5GHz WiFi

Jeran — Wed, 02 Feb 2022 18:30:24 GMT

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