Exclude Samba server (in AD for LDAP) from WSUS Computers

I have a Samba based NAS server that is a member of a SBS 2003 domain AD for
user authen. However, because of SBS's WSUS requirements it shows up as
"There are xcomputer(s) that have not registered with Update Services"

Does any one have any ideas how I can remove it from WSUS without breaking
(blue shielding) it?

Thanks for your attention to this matter,

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