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The Network Adapter could not establish the connection - 17002

R o bNov 8 2013 — edited Dec 30 2013

Hi,

this issue has been discussed already but none of the solutions or circumstances seem to be similar to mine.

I have W 7 64bit, SQL Developer 3.2.20.09 and jdk1.7.0_40.

I can connect to "Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production"

but I cannot get any connection to "Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production" and get the aformentioned error message.

It's not an connectivity issue as I can connect to the database from a different application running on my W7 machine or from SQLDeveloper on my XP machine.

My Oracle Client seems to be "SQL*Plus: Release 11.2.0.3.0 Production".

Any ideas or suggestions?

Many thanks, Rob

This post has been answered by R o b on Nov 13 2013

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