Remote connection via ODBC

Downloaded and installed the cdata Couchbase ODBC driver, but I cannot connect to our cluster.

EH WARNING: odbc_exec(): SQL error: Connection failed: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond, SQL state HY000 in SQLExecDirect in test.php

Are remote connections to Couchbase not supported even under this context?
If so, how do we allow remote connections?
Thanks in advance.