SAP (sybase) RS - rs_init - Could not connect to ID Server Unable to execute query create connection

The case:

Error when adding a new connection using rs_init: 

Could not connect to ID Server Unable to execute query create connection.

Error message:

WARNING: "Could not connect to ID Server 'ID_RS_NAME'."

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SQL Server message: msg 45, level 12, state 0

WARNING: "Could not connect to ID Server 'ID_RS_NAME'."

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Unable to execute query 'create connection to "ASENAME"."DBNAME" s

et error class rs_sqlserver_error_class set function string class rs_sqlserver_

function_class set username "DBNAME_maint" set password *** with log tr

ansfer on' against server 'RS_NAME'.

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Solution:

The ID Server RS is not available:

1. The RS service is down - start it.
2. Network or connections problems.
3. Any other reason