We have a Windows Server 2008 R2 that hosts an ASP.Net Web API. This Web API makes a series of 3 calls to a SOAP Web Service running in a different ASP.Net application on the same server.
One of our developers installed Fiddler on the server to debug the calls from the Web API to the Web Service.
After debugging and uninstalling Fiddler v5.0.20182.28034 for .NET 4.6.1, calls from the Web API are still being directed to the 127.0.0.1:8888 proxy address.
We have reinstalled Fiddler and started and Stopped it gracefully to be sure the Internet Options are being set back.
We have searched the Web API application directory and its Web.config file for a defaultProxy setting.
We have searched the entire Microsoft.Net directory in Windows and all machine.config and Web.config (even *.config) files for any defaultProxy setting and have found only '<proxy usesystemdefault="true" />' yet after repeated reboots and install/uninstall of Fiddler, we cannot get the Web API to work without Fiddler installed and running on the server.
As soon as we shut Fiddler down, the Web API calls to the Web Service begin to fail with the error "...target machine actively refused it 127.0.0.1:8888"
Can you help me determine what is happening?
Thanks in advance.