For quite some time I have got a kind of an issue with SQL Developer.
Connection Type Basic, with Hostname = localhost at port 1521 and sid xe works fine.
What also works is Hostname = IP6 Address
But when I use the windows Hostname like Hostname = labtop23 (the host does not belong to a domain)
Then I get time out errors.
The listener is clearly listening to HOST=labtop23
Am I missing somewhere, something?
The browser based access with apex is working fine, too.
.