Python PySMB已连接但无法存储文件

我正在尝试创建一个简单的脚本来将文件上载到windows共享。到目前为止，我得到了连接，脚本甚至创建了一个空文件。但数据并不能说明这一点

下面的代码似乎建立了连接ok，并允许我在编写空文件时列出共享等内容

import smb

from smb.SMBConnection import SMBConnection

share_name          = "sharesRus"
user_name           = "blanked_user"
password            = "blanked_password"
local_machine_name  = "Server6"
server_machine_name = "server.domains.lastbit.com"
server_IP           = "10.100.100.45"

# create and establish connection
conn = SMBConnection(user_name, password, local_machine_name, server_machine_name, use_ntlm_v2 = True, is_direct_tcp = True)

connected = conn.connect(server_IP, 445)

print(connected)

filename = 'D:\\Users\\Username\\Desktop\\data.csv'

with open(filename, 'rb') as in_file:
    conn.storeFile(share_name, '/TestData4.csv', in_file)

conn.close()

我犯了一个错误

ConnectionResetError: [WinError 10054] An existing connection was forcibly closed by the remote host