I assume that you migh have this Event recorded.
Event Type: Warning
Event Source: OpsMgr SDK Service
Event Category: None
Event ID: 26371
Date: 3/12/2008
Time: 11:25:22 AM
User: N/A
The solution as i see on the web to this issue could be related to Permissions..
please use SETSPN -L to check the SPN registered fro the SDK service..
The syntax for the SetSPN should be ..
" Setspn.exe A MSOMSDK/ domain\username (this is the SDK service account name)
" Setspn.exe A MSOMSDK/ domain\username
Please read thru this to setup permissions.. for the SDK account
http://blogs.technet.com/jonathanalmquist/archive/2008/03/12/sdk-spn-not-registered.aspx