c# - Free webhosting not letting WebRequest get the page -

I am creating a chat application and I am using a free webhosting to store online users in a database I am I have the following structure:

1) index.php Where I find users online in this format:

  & lt ; Users & gt; & Lt; Name & gt; & Lt; / Name & gt; & Lt; IP & gt; & Lt; / IP & gt; & Lt; / User & gt;    
 2)  add.php? When the user =  adds it, to add a new user to the database.  
 3) When it disconnects, remove the user from  remove.php? User = .  
 Now in the application I have a function  GetUsers ()  like this:  
  string url = @ "http: // .. ./index.php "; System.Net.WebRequest req = System.Net.WebRequest.Create (url); System.Net.WebResponse res = (System.Net.WebResponse) req.GetResponse ();   
 If I am using a local IIS server for URL, but when I try the free web hosted URL, then give me a  406 not acceptable  error That's why I think I need to make some headers or some things to be a fake real browser.  
  Update:  1) Free hosting service is using Apache as a webserver 2) You can recommend another way to get the web page.   
 
 
 I suggest using a tool like capturing your browser's request, and then Trying to simulate in code.  
 You can root your programmatic requests through the use of technology through technology. Quick:  
  req.prxy = new WebProxy ("http: // localhost: 8888", incorrect);   
  Localhost: 8888  is the default address of the Fidler.