We have an inhouse .net developed client application that connects to our w2003R2 server via the SOAP protocol.
A few days a ago the client application started producing this error :
Error = The request failed with HTTP status 417: Expectation failed
Basicly when you launch the client application it sends authentication to the server and the server responds and the user can use application.
The problem is that the server receives the SOAP xml data but it doesnt process it!! NO RESPONCE.
I have no idea why this all of a sudden STOPPED after working for 1.5Years..
We have tried re-installing .net, Service packs, Updates, reconfiguring eveyring we could possiblly think of but NO GOOD.
I would be FOREVER GRATEFULL if someone could help.