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ora-06413 connection not open error with Toad


ora-06413 connection not open error with Toad while connecting to Oracle XE


I’ve installed Oracle XE and Toad on Windows Vista. I am able to connect to database from the command line interface provided by Oracle. But when connecting from TOAD i am getting ora-06413 connection not open error.

Refer to my tnsnames.ora file attached.

Please help me resolve this problem.

tnsnames.ora (624 Bytes)


Is polani-PC defined in your Windows hosts file ?



Thanks for the quick response!

I tried adding it to hosts file, but no luck :frowning:



You might try making that hosts entry read
polani-PC localhost


I’ve added host name to hosts file as you suggested. But that didn’t resolve my problem. Any other suggestions?


Finaylly, I had to install TOAD for Oracle base edition to come out of this problem.