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OS: Windows 7 64bit Pro System: Thinkpad x201t

I have a big problem trying to access network shares located on other windows pcs (xp,vista) and NAS System (readynas nv+) from my win7 pro 64 thinkpad. The Shares are visible from all other PCs in my network (xp,vista,macos)

I can ping the NAS for example and I can see it in the Network overview. I can also see other Services available from the NAS, but no Share is visible there, forcing me to use http to download files.

I have tried several sollutions for similar problems allready, but none did help so far. Even Manually connecting to a network Share using its IP is not working.

Here is the most recent sollution I did follow to the letter, which seems to be the most detailed I have read so far:

Browse to "Local Policies" -> "Security Options". Now look for the entry "Network Security: LAN Manager authentication level" and open it. Click on the dropdown menu and select "Send LM & NTLM - use NTLMv2 session security if negotiated". Apply the settings.

In the Advanced sharing settings page of Network and sharing center, you need to have it set as Work/Home profile. Try

-Enable network discovery -Turn on file and print sharing -Turn off password protected sharing -Use user accounts and passwords to connect to other computers

The other settings such as encryption I have set as use 128 bit encryption.

Please check related policies.

  1. Enter “gpedit.msc” in the Start Search box.
  2. Open “Computer Configuration”/Windows Settings/Security Settings/Local Policies/Security Settings.
  3. In the right pane, enable the following policies:

Network access: Allow anonymous SID/name translation Network access: Let Everyone permissions apply to anonymous users

Also please disable the following policies.

Network access: Restrict anonymous access to Named Pipes and Shares Network access: Do not allow anonymous enumeration of SAM accounts Network access: Do not allow anonymous enumeration of SAM accounts and shares

I have updated all drivers very recently and since the complicated instructions did not help so far I think I might me missing something very basic...

If some special information is needed that I have not mentioned here please post a comment.


share|improve this question
In Network and sharing center, what does your current network show as?, Home, Work or Public? – Moab Apr 17 '11 at 22:58
It is set to Work for a while now. Before that it was set to Home - no changes. The Workgroup is the same for all my windows PCs. I do not know much about the home-network name that is used in the "Home" Setting, since this setting is not available on the older OSes. – Stefan Fassel Apr 18 '11 at 7:08
So what displays when you click "Network" in Windows Explorer? Do any networked devices/PC's show up? Double check that Network discovery is still turned on. – Moab Apr 18 '11 at 15:11
Double check the Windows firewall setting for printer and file sharing is enabled. – Moab Apr 18 '11 at 15:12
I get 2 entries in the Network view: First on ist a Multimedia Server hosted on my NAS and the second one is a storage Device Icon for my NAS which opens the NASs admin panel if double clicked. Network discovery is ON as well as File/Printer sharing. For testing I shut down the Firewall without any appearant change. However I have not found the explicit settings for Sharing and Printing in the Windows Firewall. – Stefan Fassel Apr 19 '11 at 7:05

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