ADAM vs ADAM user authentication with C # - cannot communicate

I installed an ADAM instance and added some testing users. From C #, I can bind to ADAM using a Windows account, but I cannot bind it to one of the ADAM users. (I can successfully bind adam users in ldp) and I made sure users are enabled by setting msDS-UserAccountDisabled to false. When I connect to my Windows account, I can successfully search and return properties for ADAM users, but I am still trying to authenticate them, when I try to connect to my ADAM user account, I get the error:

Error: System.Runtime.InteropServices.COMException (0x8007052E): Login failed: unknown username or invalid password. at System.DirectoryServices.DirectoryEntry.Bind (Boolean throwIfFail)

Here is the code I'm using:

string userName = txtUserName.Text;
string password = txtPassword.Text;
string ADConnectionString = "LDAP://localhost:389/CN=sandbox,DC=ITOrg";
DirectoryEntry entry = new DirectoryEntry(ADConnectionString);

entry.Username = "myComputer\\Administrator";
entry.Password = "myPassword";
try 
{
DirectorySearcher searcher = new DirectorySearcher(entry);
searcher.Filter = "(&(objectClass=user)(CN=" + userName + "))";
SearchResultCollection result = searcher.FindAll();
if (result.Count > 0)
{
    //bind with simple bind
    using (DirectoryEntry de = new DirectoryEntry(result[0].Path, userName, password,AuthenticationTypes.None))
    {
         if (de.Guid != null) // this is the line where it dies
         {
              Label1.Text = "Successfully authenticated";
              Label2.Text = result[0].Properties["displayName"][0].ToString();
              Label3.Text = result[0].Properties["telephoneNumber"][0].ToString();
          } else 
          {
             Lable1.Text = "Unable to Authenticate";
          }
     }
}
else
{
    Lable1.Text = "UserName :" + userName + " not found"; 
}
} catch(Exception ex)
{
     Label1.Text = "Error searching: " + ex.ToString();
}

      

        
        
        
      

    

Thanks in advance for any help, greatly appreciated!