How domain logons are made in HttpWebRequest requests

An issue in which a request cannot succeed when a job encounters an address in a different domain

Looked up a lot of information, basically said the following two points

(1). HttpWebRequest request = new HttpWebRequest ();

Request. Userdefaultcredentials = true;//default use of login credentials

(2).

Request. Credentials = new NetworkCredential ("username", "password");

Username,password Account for domain login

Both of these failed to solve the problem.

It was later found that the NetworkCredential constructor has 5 overloads

First, public networkcredential ();

Initializes a new instance of the System.Net.NetworkCredential class with the specified user name and password.
Ii. public NetworkCredential (string userName, SecureString password);

Initializes a new instance of the System.Net.NetworkCredential class with the specified user name and password.
Iii. public NetworkCredential (String userName, string password);
　　
Initializes a new instance of the System.Net.NetworkCredential class with the specified user name, password, and domain.
Iv. public NetworkCredential (string userName, SecureString password, string domain);

Initializes a new instance of the System.Net.NetworkCredential class with the specified user name, password, and domain.
V. Public NetworkCredential (string userName, string password, string domain);

Because the encryption method is not used, the 5th overload has the parameter domain, that is, the login domain name, use, problem resolution.

Request. Credentials = new NetworkCredential ("username", "password", "domain");

How domain logons are made in HttpWebRequest requests