PLEASE HELP! I can't get a token by doing a basic authentication.

I keep getting the error:

b’HTTP/1.1 401 Unauthorized\r\nContent-Type: text/html\r\nServer: Microsoft-IIS/10.0\r\nWWW-Authenticate: Basic realm=“localhost”\r\nX-Powered-By: ASP.NET\r\nX-Frame-Options: SAMEORIGIN\r\nDate: Fri, 14 Feb 2020 05:38:32 GMT\r\nContent-Length: 1293\r\n\r\n\r\n\r\n\r\n\r\n401 - Unauthorized: Access is denied due to invalid credentials.\r\n\r\n\r\n\r\n\r\n\r\n

Server Error

\r\n
\r\n
\r\n

401 - Unauthorized: Access is denied due to invalid credentials.

\r\n

You do not have permission to view this directory or page using the credentials that you supplied.

\r\n
\r\n
\r\n\r\n\r\n’

Following link might be helpful for you, please read -

https://doc.developer.milestonesys.com/html/index.html?base=gettingstarted/intro_soap_protocols.html&tree=tree_3.html