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I have a Win7 32 bit PC I am using as a file server with a couple of external drives hanging off of it. I have a 64bit Win7 Pro desktop and a 32bit Win7 Pro laptop that can map to the "file server" with no problem.

I also have another 64bit Win 7 box running Ultimate that, using the exact same settings, cannot map to it.

I can Remote Desktop to the server from the desktop and successfully ping it, but I cannot map to it.

I keep getting "\[serverName] is not accessible. Might not have permission to use this network resource. The specified network provider name is invalid". What am I missing?

Please don't tell me it is an issue between Pro and Ultimate or 32 vs. 64 bit. That would really drive me crazy.

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Its not an issue between Pro and Ultimate, the only explation of your problems, is the configureation is wrong. – Ramhound May 20 '13 at 15:28
    
Where would you suggest I look? As I said, all 3 machines are configured the same and are connected to the same router to boot. There appears to be no difference anywhere, just that one machine doesn't want to connect. – rrumaner May 20 '13 at 19:01

It should work fine. Check some of the following things:

  • Are both systems set into the same workgroup? You can check this by right-clicking on computer, select propeties and scroll down a bit.
  • Check that you use the same user credentials at both computers.
share|improve this answer
    
All are in WORKGROUP and I am using the same credentials on all 4 machines. – rrumaner May 20 '13 at 15:10
    
Allright, so that couldn't be it. Try browsing to the server directely using explorer. This might also work. It can't be a problem between Windows 7 Ultimate and Pro, because I use that set-up for over two years now and it works fine. – Jelle Wouters May 20 '13 at 15:15
    
When you say to browse the server using explorer, do you mean from the Ultimate box? That is when I get the error I mentioned. I can Remote Desktop to it and ping it, I just cannot access it thorough Explorer or map to it – rrumaner May 20 '13 at 15:23
    
One more thing, the server shows up under Network in Explorer so it knows it is there. – rrumaner May 20 '13 at 15:33
    
What location are you attempting to navigate to? Is do you have the admin share enabled (\\(PC)\c$)? – Qwilson May 20 '13 at 15:36

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