ORA-12170: TNS:Connect timeout occurred
[Gathering the answers in the comments] The problem is that the Oracle service is running on a IP address, and the host is configured with another IP address. To see the IP address of the Oracle service, issue an lsnrctl status command and check the address reported (in this case is 127.0.0.1, the localhost): (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521))) … Read more