This shows that is is using 8.1.7.0.0, the listener is up on the host. tnsping does not check for "CONNECT_DATA" line in tnsnames.ora file Make sure this line has the correct SERVICE_NAME or SID Regards Joseph Amalraj Jonathan Knight wrote: > tnsping doesn't give any additional information. > Below is the entire output from tnsping: > > C:\Documents and Settings\JonK>tnsping clsdev.world > > TNS Ping Utility for 32-bit Windows: Version 8.1.7.0.0 > - Production on 18-JAN-2006 09:45:21 > > (c) Copyright 1997 Oracle Corporation. All rights > reserved. > > Attempting to contact > (ADDRESS=(PROTOCOL=TCP)(HOST=ud505)(PORT=1521)) > OK (110 msec) > -- Regards Wolfgang Breitling Centrex Consulting Corporation www.centrexcc.com -- //www.freelists.org/webpage/oracle-l