Connect to remote server error: read ECONNRESET

[SIMONLQY]

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Describe the bug
the sftp.json is properly set, but the connection to remote server is failed with error: read ECONNRESET

Specifically, m sftp.json is set as:
{
"name": "server",
"host": "my_host_address",
"username": "my_user_name",
"protocol": "sftp",
"privateKeyPath": "/Users/user/.ssh/id_rsa",
"port": 22,
"remotePath": "/home/myProject",
"uploadOnSave": true,
"ignore": [".vscode", ".git", ".DS_Store"]
}

What's strange is that i can successfully connect to my server with ssh, even in SFTP:EXPLORER page with "Open SSH in terminal" and it can be connected, but with sftp itself it will cause error error: read ECONNRESET.

My server require proxy to connect to but i have tried to add proxy in vscode and it still not work.

To Reproduce
Steps to reproduce the behavior:

1. Install SFTP
2. Open a project folder and Set the sftp.json as above.
3. Try to upload a file.

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
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Desktop (please complete the following information):

• OS: Mac
• VSCode Version [e.g. 1.51.0]
• Extension Version [e.g. 1.7.0]