GetReponse Timeout on 3rd Attempt

[RobHudson]

Hi

I have a .NET 1.1 app that is using a WebRequest/GetResponse to call a php script on a web server. The first 2 times the process is run it completes fine. On the 3rd attempt I get a timeout error "The operation has timed out".

I have tried this on 2 different PCs and making the call to 2 different web servers (one windows and one linux).

Here's the code:

WebRequest wrq = WebRequest.Create(String.Concat(BACK_UP_LOCATION, "backup.php", sQ));
wrq.Timeout = 10000;
WebResponse wrs = wrq.GetResponse(); // Errors here...
StreamReader sr = new StreamReader(wrs.GetResponseStream(), Encoding.ASCII);
s.Append(sr.ReadToEnd());
wrs.Close();
wrs = null;
wrq = null;

Changing the timeout to a longer term does not help

Any ideas? Why would it timeout on the 3rd attempt and not the others?

Thanks Rob