Ms08-067 958644 not installed in wsus

i have a wsus  3.0 for 500 computers, every month i approval  the security updates and the clients automatically download de approvated update and this are installed everything is ok.
but 3 days hago i approved de MS08-067 958644 security update but this update is not download for clientes, when is see the report for thes updat say 500 computers need this update in detail of report  in approval say install but in state of computers say not installed.
some one can help me?
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williamvelasquezAuthor Commented:
a firewall was the problem, fix this and all is ok now

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