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IO Error 17002 in Oracle SQL Developer
#1
Hi all,


While trying to connect to my one of test DB with the Oracle SQL developer getting following error
IO Error: The network adapter could not establish the connection vendor code 17002

i was working okay 1 week back, I am able to connect the the Production Database through the Oracle SQL developer but when I try to connect to the test i am getting this error

I have already cross checked the service name and ports and looks to me everything is okay please help me out for problem?
R, Saleem
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#2
Generic causes for this error:

1. Your database listener is not running
2. It is running, but maybe there is a firewall intervening
3. It is running, no firewall issue, but you have provided incorrect connection details.
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