We are getting this error from the Couchbase.NET SDK 3.3.4.
Couchbase.ServiceNotAvailableException: Service n1ql is either not configured or cannot be reached. Check logs for details.
The query service is running as the same statement being run by the SDK runs fine in the Query Builder. Also, port 8093 is open as are all the indexing ports.
This happens when running Couchbase in Docker as well as a stand-alone server.