This is generally a symptom of another problem. Is "TNS: lost contact" the only error message you see? If there is any other error output, please provide it. Also, check the alert log around the time of the error. -Mark -- Mark J. Bobak Senior Oracle Architect ProQuest/CSA "There are 10 types of people in the world: Those who understand binary, and those who don't." ________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of John Dunn Sent: Tuesday, May 08, 2007 11:36 AM To: oracle-l Subject: Problem with 10.2 install on AIX 5.2 I am installing 10.2 on AIX 5.2 Everything seems OK until database creation and then I get the error TNS - lost contact. The listener appears to be running.............. Any ideas? John