Cannot access \\machinename\c$ resources

We are running Windows 2003 Active Directory. When you access \\machinename\c$ in a computer logged as Domain administrator it works fine, but when you do the same logged with other users , in some of the cases we cannnot access.
IT is shown a dialog box asking for username and password with permisions to access C$ if you enter the domain administrator account it works sometimes and it does not work other times. I really don't know why.
When it fails you get an error message saying you have no permissions to access c$.
GlezalSLAsked:
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Jay_Jay70Commented:
Hi GlezalSL,

the C$ is an administrative share and by default only the admins have access to it. You need to create another share and give the apprp permissions to it     the C$ share cannot be changed

Cheers!
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GlezalSLAuthor Commented:
I know. I want to access C$ with the admin account and it works in some computers but it fails in others.
Maybe I did not explain it properly.
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Jay_Jay70Commented:
on the machines that dont work, is there any difference in the TCPIP config - specifically NETBIOS
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GlezalSLAuthor Commented:
Exactly the same configuration.
It allways work when you are logged with the domain administrator account and you access \\machinename\c$ but it fails "sometimes" when you are logged with other users.
Thanks.
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Netman66Commented:
Your last post kind of answers your own question.

The Domain Admin group is added to the local Administrators group on every PC that joins the domain - therefore, logging in with a DA account makes you part of the local Admin group.

When you are logged in as "other users" unless these users are part of the local Administrators group on the TARGET computer then you will be prompted for credentials or flat out denied.

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GlezalSLAuthor Commented:
That's correct. I am asked for credentials and when I enter the Domain administrator credentials in some cases I am not allowed to access c$, but
in other cases I access C$ perfectly.
That's the key of the question.
Thanks.
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Netman66Commented:
How are you entering the username?

It should be DOMAIN\Domain Admin Account - unless the workstation you are attaching to is not part of the domain, in which case you will have to know the Administrator password.


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GlezalSLAuthor Commented:
Yes, that's the way I am accessing. As I told before it only fails some times and I don't know why. When it fails I have also tried DOMAIN@Domain Admin Account but it doesn't work either.
It's really tricky
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GlezalSLAuthor Commented:
Any other clues?
Any help will be more than wellcome.
Thanks.
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Windows Server 2003

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