C# Download File from HTTP File Directory getting 401 error or 403 error - webclient

Question

I’m trying to download several files from a local network device:
http file directory
I want to write a code that will automatically download all those .avi files to my pc drive.
I have 2 problems:
Problem 1: AUTHENTICATING using WebClient class only.
If I use WebClient class only to connect, I get a 401 Unauthorized error.
Code:
try
{
using (WebClient myWebClient = new WebClient())
{
myWebClient.UseDefaultCredentials = false;
myWebClient.Credentials = new NetworkCredential("user", "pword");
String userName = "user";
String passWord = "pword";
string credentials = Convert.ToBase64String(Encoding.ASCII.GetBytes(userName + ":" + passWord));
myWebClient.Headers[HttpRequestHeader.Authorization] = "Basic " + credentials;
Console.WriteLine("Header AUTHORIZATION: "+ myWebClient.Headers[HttpRequestHeader.Authorization].ToString());
// Download the Web resource and save it into the current filesystem folder.
Console.WriteLine("Start DL");
myWebClient.DownloadFile("http://192.168.2.72:81/sd/20170121/record000/P170121_000000_001006.avi", "P170121_000000_001006.avi");
Console.WriteLine("End DL");
}
}
catch(Exception ex)
{
Console.WriteLine("DOWNLOAD ERROR: " + ex.ToString());
}
Error Message: Failure to authenticate
401 Unauthorized Error
Problem 2: Was able to authenticate using WebProxy class but can’t download . Getting 403 Not found error.
Code:
try
{
using (WebClient myWebClient = new WebClient())
{
WebProxy wp = new WebProxy("http://192.168.2.72:81/sd/20170121/record000/",false);
wp.Credentials = new NetworkCredential("user","pword");
Console.WriteLine("Web Proxy: " + wp.Address);
myWebClient.UseDefaultCredentials = false;
myWebClient.Credentials = wp.Credentials;
myWebClient.Proxy = wp;
Console.WriteLine("Downloading File \"{0}\" from \"{1}\"\n\n", filename, wp.Address);
// Download the Web resource and save it into the current filesystem folder.
Console.WriteLine("Start DL");
myWebClient.DownloadFile("http://192.168.2.72:81/sd/20170121/record000/P170121_000000_001006.avi", "P170121_000000_001006.avi");
Console.WriteLine("End DL");
}
}
catch(Exception ex)
{
Console.WriteLine("DOWNLOAD ERROR: " + ex.ToString());
}
Error Message: 403 Not Found
DOWNLOAD ERROR: System.Net.WebException: The remote server returned an error: (404) Not Found.
at System.Net.WebClient.DownloadFile(Uri address, String fileName)
at System.Net.WebClient.DownloadFile(String address, String fileName)
at ConsoleApplication2.Program.Main(String[] args) in C:\Users\Gordon\documents\visual studio 2015\Projects\ConsoleApplication2\ConsoleApplication2\Program.cs:line 139
Please help me identify if there are any mistakes in my code or is there a better way to submit credentials and download all the files.
Thanks in advance!

Answer 1

I'm not Dot Net developer, I'm just sharing my opinion.
In the second point you have mentioned that you are getting 403 which is the Http status code for Acces Denied. I feel your credentials are not valid or you don't have privilege to do the operation.