GeneXus - Error conexion reset

Hola que tal espero alguien pueda ayudarme con este error
Tengo una aplicacion web echa con genexus version 9, tomcat 5.5, java 1.5 ,sqlserver 2005, la aplicacion trabaja bien pero en algunas ocaciones cuando se hace una peticion que involucra el acceso a la base de datos tarda mucho en darme la respuesta y me manda un mensaje como este:

GRAVE: Servlet.service() para servlet invoker lanzó excepción
javax.servlet.ServletException: java.sql.SQLException: I/O Error: Connection reset
at net.sourceforge.jtds.jdbc.TdsCore.executeSQL(TdsCore.java:1049)
at net.sourceforge.jtds.jdbc.JtdsStatement.executeSQLQuery(JtdsStatement.java:406)
at net.sourceforge.jtds.jdbc.JtdsPreparedStatement.executeQuery(JtdsPreparedStatement.java:693)
at com.genexus.db.driver.GXDBMSsqlserver.executeQuery(Unknown Source)
at com.genexus.db.driver.GXPreparedStatement.executeQuery(Unknown Source)
at com.genexus.db.ForEachCursor.postExecute(Unknown Source)
at com.genexus.db.DataStoreProvider.execute(Unknown Source)
at hlogin_impl.e111B2(hlogin_impl.java:416)
at hlogin_impl.evt1B2(hlogin_impl.java:231)
at hlogin_impl.ws1B2(hlogin_impl.java:198)
at hlogin_impl.webExecute(hlogin_impl.java:51)
at com.genexus.webpanels.GXWebObjectBase.doExecute(Unknown Source)
at hlogin.doExecute(hlogin.java:29)
at com.genexus.webpanels.GXWebObjectStub.callExecute(Unknown Source)
at com.genexus.webpanels.GXWebObjectStub.doPost(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:419)
at org.apache.catalina.servlets.InvokerServlet.doPost(InvokerServlet.java:169)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:833)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:639)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1285)
at java.lang.Thread.run(Unknown Source)
Caused by: java.net.SocketException: Connection reset
at java.net.SocketInputStream.read(Unknown Source)
at java.io.DataInputStream.readFully(Unknown Source)
at java.io.DataInputStream.readFully(Unknown Source)
at net.sourceforge.jtds.jdbc.SharedSocket.readPacket(SharedSocket.java:826)
at net.sourceforge.jtds.jdbc.SharedSocket.getNetPacket(SharedSocket.java:707)
at net.sourceforge.jtds.jdbc.ResponseStream.getPacket(ResponseStream.java:466)
at net.sourceforge.jtds.jdbc.ResponseStream.read(ResponseStream.java:103)
at net.sourceforge.jtds.jdbc.ResponseStream.peek(ResponseStream.java:88)
at net.sourceforge.jtds.jdbc.TdsCore.wait(TdsCore.java:3870)
at net.sourceforge.jtds.jdbc.TdsCore.executeSQL(TdsCore.java:1042)
... 32 more

ojala alguien pudiera aconsejarme como resolver este problema o pudiera ayudarme a entender que esta pasando

de antemano les agradesco su ayuda