connection string used is like “cb.test.customsubdomain.couchbase.com” and it doesn’t work only for Capella Server. I have similar setup of Couchbase Enterprise Server and the connectivity works perfectly fine. The link that I had put has all the details about the connector.
@faizchachiya from the info you’ve provided, it’s probably TLS certs. For non-production clusters which your “test.customsubdomain” one looks like, you need to either get the certificate from the cluster and provide it to the SDK, or (if this is only for testing), specify insecure mode (e.g. the SDK will not validate the server’s certificate).