Windows: Remote Connections Fail With ORA/TNS-12637 Packet Receive Failed (Doc ID 334226.1)

Last updated on APRIL 17, 2016

Applies to:

Oracle Net Services - Version 10.1.0.2.0 to 10.2.0.5 [Release 10.1 to 10.2]
Microsoft Windows (32-bit)
***Checked for relevance on 21-DEC-2012***

Symptoms

Trying to connect from a remote client or even loopback on the server to the database, results in an ORA-12637 Packet receive failed.Error TNS-12637 is reported in the sqlnet.log. Connection attempt is in the standard form:

sqlplus system/xxxxxx@alias

Local (BEQ) connections succeed.

Changes

No changes or differences

Cause

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