Web Application Error message - The remote certificate is invalid according to the validation procedure

Symptom

This error message can be found during the configuration of a new deployment (or upgrade) of one of the web applications (such as Clip Link, Clip Select, Logger, Process Engine Monitor etc), specifically with Curator Arrival (and greater) deployments, due to the inclusion of SSL.

The cause is often mistaken as being an issue with the certificates themselves, but is actually an issue with the configuration of the web application in question. 

Resolution

The resolution here is to browse to the web.config file of the web application in question and do a search/find for the term Gateway. 

What you'll find is that your URL to Curator Gateway is incorrect, most often containing localhost from a default deployment.

To correct it, replace localhost with the certified name of your Curator Gateway host (needs to begin with https://) and then restart IIS.