Most likely your clients were deployed with non-sysprep'd images that have
duplicate client ID's in them that WSUS uses to identify the machine.
You'll need to reset them at the client. See:
http://www.wsuswiki.com/ClientFAQ
http://msmvps.com/blogs/athif/pages/66376.aspx
--
Allan Williams
longman111 wrote:
> I have observed today that I have only 169 computers showing up in
> the wsus console. I know I have well over 200. For those computers
> that are not showing up, if I force a detection on 1, it will be
> added to the wsus console, however when it is added a different
> computer is removed from the console, always leaving the total count
> at 169. This sounds like a database issue - maybe a size issue - not
> sure. I am using the Windows Database. Thoughts?