WMI Control fails

Hi.

 

I have a few Windows 2003 Std Servers and i have configured the f5isapi.dll to use wmi control. In some of them, the wmi Works fine, but in others doesnt work. I´m testing it making post requests like this:

 

http:///Scritps/f5isapi.dll?GetCPUInfo

 

In servers that doesnt work returns "GetCPUInfo command: CreateInstanceEnum() failed (0x80041003)"

 

All servers have same hardware and software. Any ideas?

 

Regards