bimmer_connected: Authentication failure

I was playing around with the library to write my own front end to bimmer_connected after using its component for a while in home assistant. It’d been working fine until sometime today or yesterday.

Using the demo script on both my desktop and my phone, I get the following:

rob@hymie:~$ .local/bin/bimmerconnected status <MyUsername> <MyPassword> north_america
DEBUG:bimmer_connected.account:Getting vehicle list
DEBUG:bimmer_connected.account:getting new oauth token
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): b2vapi.bmwgroup.us:443
DEBUG:urllib3.connectionpool:https://b2vapi.bmwgroup.us:443 "POST /gcdm/oauth/token HTTP/1.1" 400 None
ERROR:bimmer_connected.account:Unknown status code 400, expected 200
ERROR:bimmer_connected.account:{
  "error" : "invalid_grant",
  "error_description" : "authentication failed"
}
ERROR:bimmer_connected.account:Authentication failed. Maybe your password is invalid?
ERROR:bimmer_connected.account:Unknown status code 400, expected 200
Traceback (most recent call last):
  File "/home/rob/.local/lib/python3.5/site-packages/bimmer_connected/account.py", line 89, in _get_oauth_token
    expected_response=200, post=True)
  File "/home/rob/.local/lib/python3.5/site-packages/bimmer_connected/account.py", line 134, in send_request
    raise IOError(msg)
OSError: Unknown status code 400, expected 200
Traceback (most recent call last):
  File "/home/rob/.local/lib/python3.5/site-packages/bimmer_connected/account.py", line 89, in _get_oauth_token
    expected_response=200, post=True)
  File "/home/rob/.local/lib/python3.5/site-packages/bimmer_connected/account.py", line 134, in send_request
    raise IOError(msg)
OSError: Unknown status code 400, expected 200

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File ".local/bin/bimmerconnected", line 126, in <module>
    main()
  File ".local/bin/bimmerconnected", line 45, in main
    args.func(args)
  File ".local/bin/bimmerconnected", line 50, in get_status
    account = ConnectedDriveAccount(args.username, args.password, get_region_from_name(args.region))
  File "/home/rob/.local/lib/python3.5/site-packages/bimmer_connected/account.py", line 55, in __init__
    self._get_vehicles()
  File "/home/rob/.local/lib/python3.5/site-packages/bimmer_connected/account.py", line 188, in _get_vehicles
    self._get_oauth_token()
  File "/home/rob/.local/lib/python3.5/site-packages/bimmer_connected/account.py", line 94, in _get_oauth_token
    raise OSError(msg) from exception
OSError: Authentication failed. Maybe your password is invalid?

I know the password and username are correct, since I just used bash history to run the command line python script as I had before with success.

Sensors in home assistant have also stopped working, and I can no longer honk the horn or flash lights from a home assistant script (this had worked before). The home assistant log shows an almost identical error as the sample script above:

Thu Mar 28 2019 17:14:38 GMT-0500 (Central Daylight Time)
Authentication failed. Maybe your password is invalid?
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/bimmer_connected/account.py", line 89, in _get_oauth_token
    expected_response=200, post=True)
  File "/usr/local/lib/python3.7/site-packages/bimmer_connected/account.py", line 134, in send_request
    raise IOError(msg)
OSError: Unknown status code 500, expected 200

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/homeassistant/components/bmw_connected_drive/__init__.py", line 144, in update
    self.account.update_vehicle_states()
  File "/usr/local/lib/python3.7/site-packages/bimmer_connected/account.py", line 213, in update_vehicle_states
    car.update_state()
  File "/usr/local/lib/python3.7/site-packages/bimmer_connected/vehicle.py", line 72, in update_state
    self.state.update_data()
  File "/usr/local/lib/python3.7/site-packages/bimmer_connected/state.py", line 99, in update_data
    params=params)
  File "/usr/local/lib/python3.7/site-packages/bimmer_connected/account.py", line 123, in send_request
    headers = self.request_header
  File "/usr/local/lib/python3.7/site-packages/bimmer_connected/account.py", line 107, in request_header
    self._get_oauth_token()
  File "/usr/local/lib/python3.7/site-packages/bimmer_connected/account.py", line 94, in _get_oauth_token
    raise OSError(msg) from exception
OSError: Authentication failed. Maybe your password is invalid?

At least one other user of the component in home assistant has reported the problem.

I can still use the Connected Drive web portal. I don’t use the BMW smartphone app.

Has BMW changed the API or the URL of the service perhaps?

BTW, I’m using the library in North America, and the vehicle is a '17 i3 with Rex.

I think still have the fingerprint file from when the script was working, would that be useful to post?