ORA-12170 When Connecting Directly or Via Dblink From 10g To 8i

(Doc ID 363105.1)

Last updated on OCTOBER 31, 2016

Applies to:

Oracle Net Services - Version: to - Release: 8.1.7 to 10.2
Information in this document applies to any platform.
Checked for relevance on 14-JAN-2010.


The following error is thrown upon attempting to connect directly or via dblink from an Oracle 10g environment to an Oracle 8i database.

ERROR at line 1:
ORA-12170: TNS:Connect timeout occurred


This is likely a new installation of 10g or newer.


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