Problem on connecting Tns could not resolve Service Name

[Michalovski]

Sometimes when I try to connect at some databases listed on tnsnames.ora, or if I try to reconnect pl/sql dev to another database, I get the following message: "TNS could not resolve service name".

I saw this happening at another 4 machines at my office. Could you please tell me what's the problem and how to solve it?

 

[Ron]

This problem usually occurs when the host name specified in tnsnames is not defined in the hosts file on the computer. Either add the host name to the host file or change tnsnames to use the actual IP address.

 

[Marco Kalter]

If you can't work this out, go to Help > About, press the 'Info' button, press the 'Copy all pages' button on this info screen, and paste this text into an e-mail.

 

[Michalovski]

Ron, All my tns are by ip. Do you have any other idea?

 

[Marco Kalter]

Go to Help > About, press the 'Info' button, press the 'Copy all pages' button on this info screen, and paste this text into an e-mail.