Hi,

> "IWAS0126E Problems encountered while trying to establish connection
> Con3. Reason: 'Resource Exception. Unable to complete network
> request to host "localhost". Reason: Unable to complete network
> request to host "localhost".'

> Connection URL: jdbc:firebirdsql://localhost:3060/c:/<my local
> path>/testdb.fdb

Connection URL is not correct. Port 3060 belongs to InterServer,
server-side part of InterClient JDBC driver. Since you're using
JayBird, you do not need InterServer, you can connect directly to the
Firebird server. Therefore URL should be (note port is 3050):

jdbc:firebirdsql://localhost:3050/c:/<my local path>/testdb.fdb

Best regards,
Roman Rokytskyy