Article: HTTP Client Connector using Authentication Type "NTLM Authentication" fails with NTLM handshake error OR end-user Account lockout after failed retries - Boomi Community
Article: HTTP Client Connector using Authentication Type "NTLM Authentication" fails with NTLM handshake error OR end-user Account lockout after failed retries - Boomi Community
The HTTP request is unauthorized with client authentication scheme 'Ntlm'. The authentication header received from the server was 'Negotiate, NTLM'. · Issue #3694 · dotnet/wcf · GitHub
![iis - LEGACY EDGE ONLY: HTTP request is unauthorized with client authentication scheme 'Negotiate'. .' - Stack Overflow iis - LEGACY EDGE ONLY: HTTP request is unauthorized with client authentication scheme 'Negotiate'. .' - Stack Overflow](https://i.stack.imgur.com/k7iQj.png)