the network adapter could not stablish connection
vidal, May 30, 2018 - 10:26 am UTC
good afternoon sir, i finished installing oracle 18c on my laptop but when i try to test connection or to connect it says the network adapter could not establish connection. please any help. its for study purpose
June 01, 2018 - 7:25 am UTC
If you have installed 18c, then you must have installed only the *client* software (because that it all that is currently available for 18c).
Download 12.2 and you'll have more success.
Here's my video to walk you through it