http response error: 401 - invalid content type

[NikunjPatel31]

endpoint := &winrm.Endpoint{Host: "Host", Port: 5985, HTTPS: false, Insecure: false, CACert: nil, Cert: nil, Key: nil, Timeout: 100}
params := winrm.Parameters{TransportDecorator: func() winrm.Transporter { return &winrm.ClientNTLM{} }}
client, err = winrm.NewClientWithParameters(endpoint, "username", "password", &params)
shell, err = client.CreateShell()

Getting error while creating shell -"http response error: 401 - invalid content type"

The device I am trying to connect has NTLM enabled.

I tried to connect using python winrm library it got connected, but when I tried to connect it using go lang it is giving error.
Python Library - pywinrm

[CalypsoSys]

It's probably because the server requires NTLM authentication - I have a PR in to implement this in this repo but this seems to be not very active

you could use https://github.com/CalypsoSys/bobwinrm

see https://github.com/CalypsoSys/bobwinrmntlm for usage

[NikunjPatel31]

Thank you @CalypsoSys for answer :-

Client
NetworkDelayms = 5000
URLPrefix = wsman
AllowUnencrypted = false
Auth
Basic = false
Digest = true
Kerberos = true
Negotiate = true
Certificate = true
CredSSP = false
DefaultPorts
HTTP = 5985
HTTPS = 5986
TrustedHosts

AllowUnencrypted = false
Auth
Basic = false
Kerberos = true
Negotiate = true
Certificate = false
CredSSP = false
CbtHardeningLevel = Relaxed
DefaultPorts
HTTP = 5985
HTTPS = 5986
IPv4Filter = *
IPv6Filter = *
EnableCompatibilityHttpListener = false
EnableCompatibilityHttpsListener = false
CertificateThumbprint

This is my winrm configuration.