Thanks Andrew, I would have to agree with that statement. I've been able to solve the problem, bypassing wbem and going to snmp. I'm not sure why it still won't work from the ILO, but enabling snmp via ESX seems to have done the trick. The link I used to enable snmp is below, hopefully it will help someone else.
I'd also have to agree with other folks in this forum who have experienced difficulty getting HP hardware to communicate properly with HP software ( SIM, IMC, etc.) I'm now struggling to get a few HP switch stacks to communicate with SIM and/or IMC.
I have 2 HP E3800 (J9576A) 48 port switches (stacked), SIM reports that it can successfully communicate via snmp but if I pull a power cord neither SIM or IMC report anything. Same for 2 stacks of edge switches ( HP A5120 )...frustrating.
Thanks again for the help and suggestions, Andrew.
I'll post the resolution if/when I get the switches reporting properly.