I am getting an .NET service invoke error when calling from

Hi,
I am getting the below stack trace error when calling a .NET service from Trading Networks passing xml from an inbound HTTP post from a Trading Partner Server. If I resubmit the doc from within TN, no errors are thrown. Can someone that has encountered this please help?

Thanks much in advance!

Brad

An error occurred invoking the processing service RiverOne.R1ConnectionTest:InvokeTransactionWrite for this document. The original error was com.wm.app.b2b.server.ServiceException: Invoke failed, serviceInvokeReflected() failed, error=80004003

at com.wm.dotnet.ns.DotNetNSNode.baseInvoke(DotNetNSNode.java:224)

at com.wm.app.b2b.server.invoke.InvokeManager.process(InvokeManager.java(Compiled Code))

at com.wm.app.b2b.server.invoke.StatisticsProcessor.process(StatisticsProcessor.java(Compiled Code))

at com.wm.app.b2b.server.invoke.ServiceCompletionImpl.process(ServiceCompletionImpl.java(Compiled Code))

at com.wm.app.b2b.server.invoke.ValidateProcessor.process(ValidateProcessor.java(Compiled Code))

at com.wm.app.b2b.server.ACLManager.process(ACLManager.java(Compiled Code))

at com.wm.app.b2b.server.invoke.DispatchProcessor.process(DispatchProcessor.java(Compiled Code))

at com.wm.app.b2b.server.AuditLogManager.process(AuditLogManager.java(Compiled Code))

at com.wm.app.b2b.server.invoke.InvokeManag