In the GetDeviceData.log file I get a lot of the following messages from all my switches in NAV: getDeviceData UPDATE_DATA-6-UPDATE_NETBOXES No OIDs found for netbox: I used snmpwalk to test snmp connectivity and it works fine. What might the problem be? In the eventEngine-stderr.log I get this error message. What might the problem be? SQLException for update statement: INSERT INTO alertq (alertqid,source,deviceid,netboxid,time,eventtypeid,alerttypeid,state,va lue,severity) VALUES ('8012','getDeviceData','54','21','2005-08-23 10:03:49','info',(SELECT alerttypeid FROM alerttype WHERE eventtypeid='info' AND alerttype='dnsMismatch'),'x','0','0') java.sql.SQLException: ERROR: More than one tuple returned by a subselect used as an expression. PS! I use NAV RC2