If you think you're doing things right, maybe a non-printable character found its way into your sqlnet.ora file to cause your issue. In that case, I'd open a new text editor and retype the contents of the file by hand, then save it over the top of your existing file.
Dig deeper on Oracle database installation, upgrades and patches
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.