IOException: Unexpected end of stream

Very simple test program:

static void Main(string[] args)
{
DockerClient client = new DockerClientConfiguration(new Uri("tcp://192.168.99.100:2376")).CreateClient();
Get(client);
Console.ReadLine();
}

static async void Get(DockerClient client)
{
IList containers = await client.Containers.ListContainersAsync(
new ContainersListParameters()
{
Limit = 10,
});

Console.WriteLine("Foobar");
}

Asserts on the `client.Containers.ListContainersAsync` call

Python's docker package has no problem connecting to the docker machine. My config is:

DOCKER_CERT_PATH=C:\Users\Marc\.docker\machine\machines\default
DOCKER_HOST=tcp://192.168.99.100:2376
DOCKER_MACHINE_NAME=default
DOCKER_TLS_VERIFY=1
DOCKER_TOOLBOX_INSTALL_PATH=C:\Program Files\Docker Toolbox

Any ideas?