Unable to connect to host while trying to download code from remote server

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172.18.116.149 hmp
Traceback (most recent call last):
File "F:/DRLcode/uhmap-visual-tool-main/main.py", line 53, in
ssh, sftp = get_ssh_sftp(addr, usr, pwd)
File "F:\DRLcode\uhmap-visual-tool-main\UTIL\exp_helper.py", line 113, in get_ssh_sftp
ssh.connect(addr, username=usr, password=pwd, port=port)
File "F:\anaconda3\envs\py37\lib\site-packages\paramiko\client.py", line 358, in connect
retry_on_signal(lambda: sock.connect(addr))
File "F:\anaconda3\envs\py37\lib\site-packages\paramiko\util.py", line 279, in retry_on_signal
return function()
File "F:\anaconda3\envs\py37\lib\site-packages\paramiko\client.py", line 358, in
retry_on_signal(lambda: sock.connect(addr))
TimeoutError: [WinError 10060] 由于连接方在一段时间后没有正确答复或连接的主机没有反应，连接尝试失败。