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Unable to map to C$ of a computer

By Eric9 ·
Hello,

I have a script that accesses a list of computers by their hidden C share, (C$) and I noticed that one of those computers is failing. I started doing some investigating on it and I can not manually map to the C$ of the computer, when I try it I get "System Error 53, The network path was not found." However I can ping by name and by IP.

I went a little bit further and ran nmap against the machine and these ports are open:
(The 1656 ports scanned but not shown below are in state: closed)
PORT STATE SERVICE
135/tcp open msrpc
139/tcp open netbios-ssn
1723/tcp open pptp

So the machine is not running some sort of personal firewall. I then compared that result to another machine that I can map to C$:
PORT STATE SERVICE
135/tcp open msrpc
139/tcp open netbios-ssn

I have confirmed that the local administrator passwords are identical, I am logged on as the domain account administrator, and I have of course confirmed that the share C$ exists. These machines are on the same subnet both logically and physically, and I can map my PC's C$ from the computer that I am having trouble with.

I would greatly appreciate any tips at all as to how I might go about solving this issue.

Thanks!

Eric

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by Eric9 In reply to Unable to map to C$ of a ...

I failed to mention, all machines here are Windows 2000 with SP3 and all patches.

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by voldar In reply to Unable to map to C$ of a ...

Don't know what is wrong, but try to add on the local machine the "Domain Admin" user to the Local Administrators Group.

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by Eric9 In reply to

Good guess voldar, I did not check that!

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by Joseph Moore In reply to Unable to map to C$ of a ...

Check if the WORKSTATION service, and the SERVER service, are both running on this machine. I forget which service would control this, but is is one or the other.
Open Services, and look there.

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by Eric9 In reply to

Very good idea Joseph, did not help me in this case, but certainly could cause this problem.

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by tamj123 In reply to Unable to map to C$ of a ...

you may want to make sure the "file and printer sharing for Microsoft Network" is installed and enable under network properties.

justa an idea.

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by Eric9 In reply to

You got it! I can not believe I did not check that myself, but that was the reason! Great job.

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by Eric9 In reply to Unable to map to C$ of a ...

I just wanted to let everyone know that I am reading every reply, but I will be able to fool around with the computer in question Friday morning. I will make sure to give everyone credit who has helped me solve this issue. Thanks again for the replies so far.

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by bgorman In reply to Unable to map to C$ of a ...

The machine in question has 1723/tcp open pptp
open. PPTP is a vpn/network data encryption protocol. I would open up the MMC and add the "IP Security Policies" snap-in and set it for the local computer. Check to see if it is requiring secure communication with other clients and if so then check with the company security policies to see if you can disable it on that computer.

Hope this helps

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by Eric9 In reply to

Thanks for the guess bgorman, although not the fix, something else I did not look at that certainly could have caused the problem.

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