Original User: MelanieWhite
Hi Jamal,
Please consider the following:
Use Tnsping to insure that you can connect from to the listener. If you do not get a response, restart your listener. If you do, insure that you can connect to your Oracle instance using SQLPlus. If you can connect using SQL plus, there might be something wrong with your connections parameters. Do you have the correct server\instance name? Have you tried using a full Oracle client?
Melanie 🙂