Are you running into a connectivity issue with search, notification service or DXH?
Do you receive a 403 forbidden error?
If so, this is likely as a result of securing the Ektron WebServices without deliberate and specific measures taken to expose them based on IP.
Please follow the directions found here to allow access to the WebServices and subsequently allow your search, notification service or DXH to communicate correctly. After you have allowed the IP of the server in IIS please re-evaluate the error that you are experiencing.