What is causing SOAPAction statement to drop off?
- We have created a .NET app that is installed on remote machines to
consume our WebService, also built with .NET. We have successfully
deployed this solution multiple times, but have just come across an
error that I hope someone else has seen.
One of our clients has installed and is trying to run our client
app. When the client app attempts to invoke our WebService, it gets
an error 500 - internal server error, request format is unrecognized.
We have analyzed the packets using Network Monitor, and can discern
that packets coming from this particular client do not contain the
SOAPAction statement that is in all other packets.
Furthermore, our client installed the application on a laptop. When
the client uses the laptop from home or other dialup, the client
application invokes our WebService and works fine. The problem only
occurs when he logs in from the office from behind his
What on our client's network/firewall could be interfering with the