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ORA-12170: TNS:Connect timeout occurred

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I have ORACLE 12c running on Windows Server 2008 and Oracle client running on Windows 7 .I am able to connect to Oracle server locally i.e. on the windows server machine itself through Oracle SQL Developer as well as SQLPLUS.

But I can't connect to Oracle 12c Running on windows server 2008 from Oracle client on windows 7.

When I try to connect through Oracle SQL developer, it throws IO Error: The Network Adapter could not establish the connection.But there is connectivity between Server and client. I checked this with ping command.

When I try to connect through SQLPLUS through command prompt, it throws error ORA-12170: TNS:Connect timeout occurred.

I tried changing sqlnet.ora parameter but didn't work.

Please, help me .

Thanks

 

 

oracle connection.odt

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