This is a test setup.

Using Zenoss 4.2.3 on CentOS 6.3 which is running on top of Hyper-V on Windows 8.  I have an IIS server running Server 2008 R2 SP1 also running on the same host.  All three machines are joined to the same Active Directory domain.

Zenoss can ping the IIS server and also monitor the server (file/cpu/mem/etc graphs).  However, when I go to test a Data Source like "iisBytesReceived", I get the following when attempting to connect to the IIS server:

Preparing Command...

Executing zenwinperf on 10.10.20.18

zenwinperf run -v 20 -d '10.10.20.18' --testCounter '\Web Service(_Total)\Bytes Sent/sec'

Timed out

DONE in 10 seconds

Any thoughts?  Firewalls not involved, the user specified to run WMI in Zenoss is a Local Admin on the IIS server.