If this is on a Compaq server, you have either recently applied a SP, the SSDs, or the Insight Agents in the incorrect order; or you have disabled SNMP service without disabling the Insight Agent services as well.
The correct order for a system upgrade on a Compaq server should be ROMPAQs, reboot, SP, SSD, reboot, Insight Agents, then a final reboot. Compaq recommends that you not reboot between applying SP and SSDs. Also SSDs should only be applied after the SP. Microsoft does not support this method, however the SP frequently overwrites necessary dlls for the SSD and Insight Agents to work properly.
Hope this helps.