Fedex Tracking API C# not returning useful data

I'm using Fedex supplied example code for C# and I can NOT get it to return any information for active packages.

I've gotten issued a production api key/meter number/password but all it e开发者_如何学运维ver tells me is that. 'No information for the following shipments has been recieved...'

I'm using the example program for 'TrackWebServiceClient' verbatim only changing the credentials.

Make sure the wsdl you got is not pointing toward the test services, but towards the live service instead. ;)