Categories Company related Good programming practice Error: Oracle SQL Developer: IO Error: The Network Adapter could not establish the connection Post author By sheberlik Post date March 29, 2016 No Comments on Error: Oracle SQL Developer: IO Error: The Network Adapter could not establish the connection Error 17002 Solution: 1.open services.msc 2. right click on OracleXETNSListener then start it, or restart it. ← Interface vs Abstract class → How to pass values to .bat file Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.