I use SSH to connect to my databases using Oracle SQL Developer.
On one PC I have installed Oracle SQL Developer 18.3.0.277 Build 277.2354. When I try to connect to my new 18cXE database I get this error:
IO Error: Got minus one from a read call
The exact same connection details works fine on my other PC on which I have installed Oracle SQL Developer 18.2.0.183 Build 183.1748.
Both PCs are able to connect to the server with PuTTY. I've tried rebooting the server, restarting the database, and restarting the listener.