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.

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)