I have used the code provided on your support website (link below) as a reference to connect to sugar CRM using C#.
All was working well until recently when I suddenly started getting "Invalid Login" error. I am able to login to the portal using the same credentials
that I embedded in the code to login through c# example.
Kindly let me know if there has been any changes made to the V4 API that I could implement in my existing application that was working perfectly fine two weeks ago..