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Posted by Roger Abell [MVP] on July 24, 2008, 2:22 am
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I will assume you encounter this in SQL Server 2005.
Is the account that the SQL service runs under a domain account?
How has this server been hardened (relative to allowed network traffic)?
If you run netdiag (from the support tools) on the server where SQL Server
is installed does it indicate all is fine?
Roger
> Hi,
>
> I have just set up a domain controller and a separate database server,
> both
> running copies of 2K8 joined to the same domain. Whenever I attempt to
> add a
> domain user / group to the database server as a new login, I get the 15401
> error stating that the NT user or group cannot be found. However, I can
> browse on the "Search..." link for the Domain account, I can ping my
> domain
> controller correctly, I have gone through all of these steps,
> http://support.microsoft.com/kb/324321/en-us, there are no existing users
> by
> the same name. I am suspicious that it may not have anything to do with
> SQL
> itself, but I am neither a DB Admin or a Infrastructure Admin, so I am at
> a
> loss. Any ideas??
>
> Thanks.
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