https://www.reddit.com/r/Chromecast/comments/1j7lhrs/the_chromecast_2s_device_authentication/
Fix casting from Android (ADB method)
-
Connect to your sender device (the phone or tablet you're casting from) using ADB.
-
Run the following:
adb shell am start-activity -a com.google.android.gms.cast.settings.CastSettingsCollapsingDebugAction
On Android 11 and below, use CastSettingsDebugAction instead of CastSettingsCollapsingDebugAction.
- In the settings panel that pops up, scroll down to "Connection" and enable "Bypass Device Auth".
As above, this should fix casting but not necessarily the Google Home app.
https://www.reddit.com/r/Chromecast/comments/1j7lhrs/the_chromecast_2s_device_authentication/
Fix casting from Android (ADB method)
Connect to your sender device (the phone or tablet you're casting from) using ADB.
Run the following:
On Android 11 and below, use CastSettingsDebugAction instead of CastSettingsCollapsingDebugAction.
As above, this should fix casting but not necessarily the Google Home app.