Hi,
welcome on the Nest Support Community,
ere are some steps you can try to troubleshoot signing in to Chromecast with your Google account:
1. Check Credentials:
- Double-check you're entering the correct username and password for your Google account.
2. Restart Devices:
- Reboot your Chromecast device by unplugging it for a minute and then plugging it back in.
- Restart your phone or tablet that you're using to cast.
3. Update Apps:
- Make sure you have the latest versions of the Google Home app
4. Check other Google Account:
6. Factory Reset Chromecast (Last Resort):
- If none of the above solutions work, you may need to factory reset your Chromecast device. This will erase all settings, so only do this as a last resort. Refer to the Chromecast manual or Google's support page for specific instructions on resetting your device.
Additional Tips:
- Make sure two-factor authentication isn't preventing the sign-in process. If enabled for your Google account, you might need to enter an additional code when signing in.