SQLS-752 — Connect packet contains invalid connect string
Transparent Network Substrate connect string syntax error. Parenthesis or equal sign expected.
This error is often caused by clients using incorrect characters in connect string. Check previous SQLS-850 log message and, if applicable, add some characters (usually e.g. space), to the default value of sqlnet-proxy CONNECT-STRING-CHARSET configuration directive. Typically it will be the first character in the string shown in the message ("... near ...").
Protocol error, proxy closes the session.