Detection state unknown in many computers

Hi All,

I have deployed SCCM 2007 SP2 R2 for 400 computers, but before to deploy it the environment has already a WSUS infrastructure with is managed by GPO.

Now SCCM 2007 is implemented and I configured Software Update Computer Agent, but it show me 385 computers in Unknown State?

WSUS infrastructure still exist. (WSUS server is using as the Software Update Point for the SCCM as well)

Regards.