wcf REST Ping timeout -

i have set iis authentification = basic, , create account windows login = pda , password = xxx.

but when client acces service, got message timeout

 public stream pingserver()         {              //string leurl = "http://localhost:81/code/wcfservice_rest_suivicolis/wcfservice_rest_suivicolis/service1.svc";             string leurl = "http://xxx.yyy.zzz/fa85/service1.svc/";             string result = "",errpb="";             try             {                 var myrequest = (httpwebrequest)webrequest.create(leurl);                  myrequest.credentials = new system.net.networkcredential("pda", "xxx");                 myrequest.method = "put";                 myrequest.contentlength = 0;                  var response = (httpwebresponse)myrequest.getresponse();                  if (response.statuscode == httpstatuscode.ok)                 {                     // si le serveur ok                     result = "ok - " + datetime.now.tostring("yyyy/mm/dd hh:mm:ss");                 }                 else                 {                     //  sinon on le problem                     result = "ko - " + datetime.now.tostring("yyyy/mm/dd hh:mm:ss");                     errpb = response.statusdescription + system.environment.newline;                 }             }             catch (exception ex)             {                 // encore un autre problem                              result = "ko - " + datetime.now.tostring("yyyy/mm/dd hh:mm:ss");                 errpb += ex.message + system.environment.newline;             } 

when deleted code:

myrequest.credentials = new system.net.networkcredential("pda", "xxx");                 myrequest.method = "put"; 

i got error 401 : authentification failed

when deleted code :

myrequest.contentlength = 0; 

i got error 411 : length required.

but now, got timeout delayed had expired

and web.config:

    <services>         <service name="wcfservice_rest_suivicolis.service1" >             <endpoint address="" binding="webhttpbinding" contract="wcfservice_rest_suivicolis.iservice1"  bindingconfiguration="basichttpendpointbinding" />         </service>     </services>      <behaviors>             <servicebehaviors>             <behavior name="servicebehaviour">                 <servicemetadata httpgetenabled="true" />                 <servicedebug includeexceptiondetailinfaults="true" />             </behavior>                    </servicebehaviors>         <endpointbehaviors>             <behavior name="web">                 <datacontractserializer maxitemsinobjectgraph="2147483647" />                                </behavior>         </endpointbehaviors>        </behaviors>     <bindings>        <webhttpbinding>         <binding name="basichttpendpointbinding"                  maxreceivedmessagesize="2147483647" maxbuffersize="2147483647"            receivetimeout="00:10:00"            sendtimeout="00:10:00"            opentimeout="00:10:00"            closetimeout="00:10:00">             <security mode="transportcredentialonly" >                 <transport clientcredentialtype="basic"  />                              </security>         </binding>     </webhttpbinding>   </bindings>   <servicehostingenvironment multiplesitebindingsenabled="false" aspnetcompatibilityenabled="true">     <serviceactivations>         <add           factory="system.servicemodel.activation.webservicehostfactory"             relativeaddress="service1.svc"             service="wcfservice_rest_suivicolis.service1" />     </serviceactivations> </servicehostingenvironment> 

it looks using windows account against basic authentication. should set iis authentication windows auth.