Resolving Two-Factor Authentication Code Errors on ETZ Accounts

1) Google Authenticator (GA) Verification Code Failure

Actions:

Refer to the "Google Authenticator Error Troubleshooting Guide" and systematically rectify any issues.
Temporarily switch to alternative 2FA methods (Passkeys / SMS / Email) to complete the verification process.
If valid codes still cannot be generated, reset your Google Authenticator.

2. SMS / Email Verification Code Failure Error Prompt "Invalid Verification Code"

Click [Get Code] to request a new code.(Avoid repeated requests within a short timeframe to avoid rate-limiting restrictions.)
Attempt to obtain the code using a web browser (PC or mobile) as an alternative to the App.
Toggle between Wi-Fi and mobile data networks to ensure a stable connection
Temporarily switch to using Passkeys or Google Authenticator.

Failure to Receive Verification Codes

Ensure that the [Get Code] button was clicked successfully.
Inspect email spam or trash folders. The verification email may have been intercepted by the email service provider. Refer to the guide on "Setting up Email Whitelists."
Attempt the request again after approximately 10 minutes. Network congestion may affect the delivery of verification codes.
Temporarily use Passkeys or Google Authenticator as an alternative.
Reset the mobile phone number or email address.

Verification codes may be forwarded to Apple 'Hide My Email' address.

Navigate to Settings > [Apple ID] > Sign-In & Security on the Apple device to identify the email address currently designated for receiving codes.
Modify Registered Email: Return to the ETZ Account Security settings. Unlink the Apple ID and register a new, valid email address.

3) Other Common Error Prompts

Error Message: "We could not process your request. Please try again later."

Switch Network Environment: Toggle between distinct Wi-Fi networks or switch to mobile data.
Clear Browser Data: Clear the browser cache and cookies.
Utilize Private Browsing: Access the ETZ official website using Incognito or Private mode.
Switch Device: Attempt to log in using an alternative device.

Error Message: "Send code failed. Please click 'Get Code' again."

Attempt to obtain the verification code using a web browser (PC or mobile) as an alternative to the App.
Retry the request after swtiching between Wi-Fi and mobile data networks.

How to Resolve Two-Factor Authentication Code Errors on Your ETZ Account