Issue with UNC access to a server

Win 2008R2 server on the our network allows RDP access with the administrator UN and PW but when I UNC I can't get access.
The server is NOT on the Domain, so I use the \administrator switch. No dice.

I do get prompted for credentials, but it never accepts the UN &PW.
This server is on a diff subnet to me but when I try access it from a machine on the same subnet I still get the
'not accessible' message.
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Did you enable RDP on the server?  If yes, also select "Allow connections from computers running any version of Remote Desktop" to ensure that there will be no issues when you use older RDP client.  If this server is not internet facing then no worry.

If RDP is enabled and you have given the selected user to allow to remote in then it should work without issues.  When you say the server is not accessible, did you get the login prompt?
wannabecraigAuthor Commented:
RDP works, that's not the issue, running from UNC path doesn't.
Ok, when using the machine on the same subnet as the server and you use UNC you mean using the machine name right?  Let's try two solutions:

1.  Try adding the server to the DHCP reservation list even if server is not part of the DHCP range.  This way the DHCP server knows there is a machine with that name and associated IP address.

2. If you add the server name and IP address to the host file of the machine you're trying to connect from does it work?  If yes then DNS is the issue.
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Fred MarshallPrincipalCommented:
Do you mean UNC with \\[servername] or \\[ipaddress] ?
wannabecraigAuthor Commented:
I mean IP.

So it's \\\c$

Apologies, for the confusion
Fred MarshallPrincipalCommented:
What about \\\c  ??  i.e. without the "$" ?

How is sharing and security set up for "c"?

The login could be different than for RDP (but in saying that I'm not saying that it can't also be the same).  That is, there can be different login credentials that can work.
Fred MarshallPrincipalCommented:
C$ is somewhat a strange beast.  It's not recommended that it be shared in the first place for rather obvious reasons.  That said, I have situations where it's done.  

In the dim past, I did some work to assure that it would work and, as I recall, the treatment was a bit different than for any other folder.  I'd have to dig it all out as I have forgotten much more than I know.

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Windows Server 2008

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