System.Net.WebException: Unable to connect to the remote server ---> System.Net. Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection fail ed because c

Error: I cant seem to download the file, please check the filename and URL. Web
Exception Error:

System.Net.WebException: Unable to connect to the remote server ---> System.Net.
Sockets.SocketException: A connection attempt failed because the connected party
 did not properly respond after a period of time, or established connection fail
ed because connected host has failed to respond :443
   at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddre
ss socketAddress)
   at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Sock
et s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state,
IAsyncResult asyncResult, Exception& exception)
   --- End of inner exception stack trace ---
   at System.Net.WebClient.DownloadFile(Uri address, String fileName)
   at System.Net.WebClient.DownloadFile(String address, String fileName)
   at DownloadFileScript.Program.Main(String[] args)