Logon failure: unknown user name or bad password.error while accessing other server

Question

I\'m accessing other server with the login credentials. My problem is if I run the code initially, it wil show the error as

Answer 1

Found out the solution. See the updated code for the answer.

try
     {
        IntPtr admin_token = default(IntPtr);
        //Added these 3 lines
        WindowsIdentity wid_current = WindowsIdentity.GetCurrent();
        WindowsIdentity wid_admin = null;
        WindowsImpersonationContext wic = null;


        if(LogonUser("myusername","domain","pwd",9,0,ref admin_token) != 0)
        {
        //Newly added lines
         wid_admin = new WindowsIdentity(admin_token);
         wic = wid_admin.Impersonate();

         DirectoryInfo dir = new DirectoryInfo(sourceDirName);
         DirectoryInfo[] dirs = dir.GetDirectories();
         }
     }