I've returned the debug information - it reads like this:
The client is unable to verify that the server is Elasticsearch due to an unsuccessful product check call. Some functionality may not be compatible if the server is running an unsupported product. Call: Status code unknown from: GET / ---> Elasticsearch.Net.PipelineException: The client is unable to verify that the server is Elasticsearch due to an unsuccessful product check call. Some functionality may not be compatible if the server is running an unsupported product. ---> System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception. ---> System.Security.Authentication.AuthenticationException: Authentication failed, see inner exception. ---> Interop+AppleCrypto+SslException: misc. bad certificate
I imagine this has something to do with settings my certificates. I posted another question similar to this - Using certificates with ElasticSearch Nest client? - #2 by stevejgordon - but I'm still not entirely sure how to use all of my certificates