In order for the web part to work properly, the following section needs to be added to the web.config file for the SharePoint site (usually located at C:\inetpub\wwwroot\wss\VirtualDirectories\80):

 

 <system.serviceModel>

   <bindings>

     <wsHttpBinding>

       <binding name="WSHttpBinding_IService" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false">

         <readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384" maxBytesPerRead="4096" maxNameTableCharCount="16384" />

         <reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false" />

         <security mode="Message">

           <transport clientCredentialType="Windows" proxyCredentialType="None" realm="" />

           <message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" establishSecurityContext="true" />

         </security>

       </binding>

     </wsHttpBinding>

   </bindings>

 </system.serviceModel>