нет ответа после проверки socket подключения

app = FastAPI()

@app.get("/check/{host}/{user}/{password}")
def read_item(host: str, user: str, password: str):
    if host.split(':') is None:
        return False

    s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
                
    try:
        s.connect((host.split(':')[0], int(host.split(':')[1])))
    except socket.error as e:
        return {'result':'down'}
    finally:
        s.shutdown(socket.SHUT_RDWR)
        s.close()

    c = PyFreeRDP(host, user, password)
    return {'result': c.connect()}