PRTG 184.108.40.2066 - Windows 2003 server/2 CPU/4 GIG RAM - recently added about 4,000 snmp sensors (with auto-discovery) equally about 8,200 total sensors. CPU utilization climbed and stayed elevated, triggering PRTG CPU alerts. PRTGserver.exe was at 1.2 GIG memory usage and CPU was between 75 - 99 % for over an hour, even though most new sensors were "green". Had to delete new sensors and stop/start the server to resume "normal" CPU usage. Are there limit thresholds or best practice procedures for auto-discovery. We have MANY more sensors to add and don't want to crash the server.