TNSPING fails with TNS-12570: TNS:packet reader failure (Doc ID 2287621.1)

Last updated on AUGUST 29, 2017

Applies to:

Oracle Net Services - Version 11.2.0.4 and later
Generic Windows

Symptoms

Tnsping failing with 12570 

Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION= (ADDRESS= (PROTOCOL=TCP) (HOST=192.xx.xx.xx) (PORT=1521)) (CONNECT_DATA= (SERVER=dedicated) (SERVICE_NAME=ORADB)))
TNS-12570: TNS:packet reader failure

 

Telnet to the IP and port works fine

local connections works fine 

 

 

Changes

New installation

Cause

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