probably it's taking a long time to delete the catalog and your client's connection is dropping. you could try using my script here: Patch Catalog Utility Script
which will let you delete all the objects in the catalog group, then you can delete the actual catalog. also - run the script from the appserver.
Thanks a lot Bill........Excellent it worked.
We have executed the script with out dryrun.
nsh catalogUtility.nsh -s false -m deleteCatalogObjects -e WINDOWS_CATALOG_GROUP -c "/Chennai/Test_4deletion2"
May be helpful to other user. We have exceuted the below command Indiviudally to delete the group & windows Smart group.
5017 : Windows Patch catalog Smart Group
5022: Windows Patch catalog Group
blcli_execute Group deleteGroupByTypeAndQualifiedName 5022 /Chennai/Test_4deletion2
blcli_execute Group deleteGroupByTypeAndQualifiedName 5017 /Chennai/Test_4deletion2/Bulletins
Thanks & Regards,