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Oracle SQL Developer doesn't work



Oracle SQL Developer doesn't work.

Content (required):

I get this error: "

An error was encountered performing the requested operation:

Listener refused the connection with the following error:

ORA-12506, TNS:listener rejected connection based on service ACL filtering


Vendor code 12506

",  but IP is the same in ACL and ipconfig.

Yesterday, all was ok yet. I didn't change neither password nor authorisation data for apps.

Version (include the version you are using, if applicable):

SQL Developer version :

Code Snippet (add any code snippets that support your topic, if applicable):

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