Which version of EID and Endeca Server are you running?
If you are using SSL, have you followed the steps to setup Integrator for SSL access? They are documented here: http://docs.oracle.com/cd/E37502_01/integrator.300/integrator_users/toc.htm#About%20Implementing%20SSL . Note that there are separate requirements for the two Integrator component types, and separate setup for Integrator Server.
I have set up the Integrator server to handle the SSL, and the other components work perfectly fine based on those instructions. However, the component in question is the HTTP connector which isn't covered in those documents. There is no ability to disable SSL authentication in that component from what I can see.