I have an ASP.NET 1.1 web site that calls a custom web service. This
web service makes a call to Reporting Services web service to generate
reports. We are using SQL Server 2000.

'--------------------------------------------------------------------------­--------------------

''''''''''''''''''''''''' Function in custom web service to call
Reporting Services web service Render
Private Function RenderReport(ByVal reportName As String, ByVal
reportFormat As String, ByVal parameters() As ParameterValue) As Byte()

       Try
           rptService.Credentials =
System.Net.CredentialCache.DefaultCredentials

           Return rptService.Render(reportName, reportFormat, _
           Nothing, Nothing, parameters, _
           Nothing, Nothing, Nothing, Nothing, Nothing, Nothing,
Nothing)
       Catch ex As Exception
           WriteToErrorLog(ex.ToString())
           Throw ex
       End Try
   End Function
'--------------------------------------------------------------------------­--------------------

Most of the time everything works fine but intermittently an error is
generated and written to our application's error log. Any insight on
resolving this issue would be appreciated. I have also posted to the
microsoft.public.sqlserver.reportingsvcs group.

System.InvalidOperationException: There is an error in XML document (1,

948). ---> System.Net.WebException: The operation has timed-out.
  at System.Net.ConnectStream.Read(Byte[] buffer, Int32 offset, Int32
size)
  at System.IO.StreamReader.ReadBuffer(Char[] userBuffer, Int32
userOffset, Int32 desiredChars, Boolean& readToUserBuffer)
  at System.IO.StreamReader.Read(Char[] buffer, Int32 index, Int32
count)
  at System.Xml.XmlScanner.Read()
  at System.Xml.XmlScanner.IncrementalRead(Object destBuffer, Int32
index, Int32 count, XmlTextReader reader, IncrementalReadType readType)

  at System.Xml.XmlTextReader.IncrementalRead(Object buffer, Int32
index, Int32 count, IncrementalReadType readType)
  at
System.Xml.Serialization.XmlSerializationReader.ReadByteArray(Boolean
isBase64)
  at
System.Xml.Serialization.XmlSerializationReader.ToByteArrayBase64(Boolean

isNull)
  at
Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReader1.Read1­71_RenderResponse()

  --- End of inner exception stack trace ---
  at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader
xmlReader, String encodingStyle, XmlDeserializationEvents events)
  at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader
xmlReader, XmlDeserializationEvents events)
  at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader
xmlReader)
  at
System.Web.Services.Protocols.SoapHttpClientProtocol.ReadResponse(SoapClien­tMessage

message, WebResponse response, Stream responseStream, Boolean
asyncCall)
  at
System.Web.Services.Protocols.SoapHttpClientProtocol.Invoke(String
methodName, Object[] parameters)
  at
AADAC.STORS.ReportWriter.ReportingServicesWebService.ReportingService.Rende­r(String

Report, String Format, String HistoryID, String DeviceInfo,
ParameterValue[] Parameters, DataSourceCredentials[] Credentials,
String ShowHideToggle, String& Encoding, String& MimeType,
ParameterValue[]& ParametersUsed, Warning[]& Warnings, String[]&
StreamIds)
  at AADAC.STORS.ReportWriter.ReportWriter.RenderReport(String
reportName, String reportFormat, ParameterValue[] parameters)