uploading large xml to WCF REST service -> 400 Bad request

I am trying to upload large xml files to a REST service... I have tried almost all methods specified on stackoverflow on google but I still cant find out where I am going wrong....I cannot upload a file greater than 64 kb!.. I have specified the maxRequestLength : ``` <httpRuntime maxRequestLength="65536"/> ``` and my binding config is as follows : ``` <bindings> <webHttpBinding> <binding name="RESTBinding" maxBufferSize="67108864" maxReceivedMessageSize="67108864" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00"> <readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"/> </binding> </webHttpBinding> </bindings> ``` In my C# client side I am doing the following : ``` WebRequest request = HttpWebRequest.Create(@"http://localhost.:2381/RepositoryServices.svc/deviceprofile/AddDdxml"); request.Credentials = new NetworkCredential("blah", "blah"); request.Method = "POST"; request.ContentType = "application/xml"; request.ContentLength = byteArray.LongLength; using (Stream postStream = request.GetRequestStream()) { postStream.Write(byteArray, 0, byteArray.Length); } ``` There is no special configuration done on the client side... I have tried fiddler...The client is sending a proper request...But the server immediately responds with a 400..