[Oracle][ODBC SQL Server Wire Protocol Driver]SSL Is Required, But Was Not Requested. {08001}

(Doc ID 2374326.1)

Last updated on MARCH 30, 2018

Applies to:

Oracle Database Gateway for SQL Server - Version 12.1.0.2 to 12.1.0.2 [Release 12.1]
Microsoft Windows x64 (64-bit)

Symptoms

Problem Summary
---------------------------------------------------
[Oracle][ODBC SQL Server Wire Protocol driver]SSL is required, but was not requested. {08001}

Problem Description
---------------------------------------------------
Migrating an existing 11.2.0.4 Oracle Database Gateway connections for SQL Server database to 12.1.0.2 OTG for SQL Server.
Getting following error on the testing the 12c OTG connection:

SQL> select count(*) from "sys"."tables"@PSCRMQA.AZR.CIS.CAT.COM;
select count(*) from "sys"."tables"@PSCRMQA.AZR.CIS.CAT.COM
  *
ERROR at line 1:
ORA-28500: connection from ORACLE to a non-Oracle system returned this message:
[Oracle][ODBC SQL Server Wire Protocol driver]SSL is required, but was not
requested. {08001}
ORA-02063: preceding 2 lines from PSCRMQA.AZR.CIS.CAT.COM

Cause

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