Volkswagen blocks Home Assistant by requiring client assertion

Source: Hacker News

Before you post a new issue – you must first check the following (and check the boxes with an “X” below)

• 1.) Can you login using the smartphone app Volkswagen/Volkswagen Connect and interact with your car?
• 2.) Please make sure that you can login into https://vwid.vwgroup.io/ and that any “Terms and Conditions” are all checked
• 3.) I do not have MFA enabled. ? What is MFA?

Environment

• Volkswagencarnet release with the issue:
• Last working homeassistant‑volkswagencarnet release (if known):
• Home Assistant Core release with the issue:
• Operating environment (Home Assistant OS/Supervised/Container/Core/venv):
• Car model and year:
• Country where the car was bought:
• Valid VW Connect subscription:
• Have you verified that the We Connect service works via VW’s portal?:

Describe the bug

I got the message that the authentication is expired, re‑login with credentials is no longer possible. The Android app and browser‑based login still work without any issue.

Steps to Reproduce

1. Enter email and password
2. Error message: „Anmeldung bei Volkswagen Connect nicht möglich. Bitte überprüfe deine Zugangsdaten und stelle sicher, dass der Dienst verfügbar ist.“

Expected behavior

Login is possible and the integration works as before.

Screenshots

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Traceback / Error logs

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Debug information

(Add JSON responses from logfile here)

Additional context

(Provide any additional information that may help)

Note

Issues lacking sufficient details or context may be closed without prior notice. Detailed bug reports are essential for effective issue resolution. Thank you for your cooperation.