Salesforce Authenticator Error: "Your response wasn't sent"

• Wait for a few minutes and try to log in again
• Restart your mobile device
• Use the 6-digit verification code (TOTP) displayed in the Salesforce Authenticator app to log in manually
  See Use TOTP Codes When Push Notifications Are Unavailable in Salesforce Authenticator for details
• Ensure your mobile device meets the latest support requirements for Salesforce Authenticator

If the issue persists, follow these steps to reset the connection:

1. Log in using the 6-digit verification code.
2. Disconnect Salesforce Authenticator from your account by following the steps in Remove an Account from Salesforce Authenticator
3. Reinstall the Salesforce Authenticator app on your mobile device.
4. Reconnect the app by following the steps in Register Salesforce Authenticator as an Identity Verification Method for Salesforce Orgs