Passive monitors have a payload limitation of 3 KB for WMI, SNMP, and Syslog Passive Monitors.
See Also
Troubleshooting and Maintenance
Troubleshooting your network
Maintaining the Database
Recovering from a "Version Mismatch" error
Task Tray Application fails on Windows Vista
Connecting to a Remote Desktop
WhatsUp Gold engine message
Troubleshooting SNMP and WMI connections
Re-enabling the Telnet protocol handler
Receiving entries in the SNMP Trap Log
Restarting the WhatsUp Gold services from the command line
Recommended SMS modems and troubleshooting tips
Uninstalling Ipswitch WhatsUp Gold
Troubleshooting the WhatsUp Health Threshold