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Windows 7: Unable to Map network drives.


01 Jan 2010   #1

Windows 7 Ultimate - 32 bit.
 
 
Unable to Map network drives.

I have two desktop PCs running Windows 7 Ultimate, a HP laptop running Windows XP SP3 and a Network Storage Device (Dlink DNS 343 with 3 Raid Volumes) networked via a D Link DIR-635 wireless Router. Both PCs and the DNS-343 are hard-wired to the router: the Laptop connects wirelessly. Since installing Windows 7 on the PCs, I am unable to map the network drives on the DNS-343 even though all network components are visible and functioing in Windows Network Map, Pure Networks Map and Norton Internet Securities 2010 Network Map(with Full Trust). This was not previously a problem with one PC running XP SP3 and the other Vista SP1. The DNS-343 does NOT appear as a network device in Windows 7 Windows Explorer: nor does the Laptop, on either PC. The laptop running XP is able to Map network drives as before and access shared folders on both PCs.

To date I have reset the factory defaults on the router and DNS-343;disabled all firewalls and minimised security controls (eg: MAC filtering) as far as I am able. I can ping each device successfully. The problem is I cannot "see" the DNS-343 in Windows 7 Windows Explorer to map the drives. Any ideas would be welcome.

My System SpecsSystem Spec
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01 Jan 2010   #2

Windows 7 Ultimate 64bit
 
 

Try this on the Win 7 machines
Type Secpol.msc in the RUN command >Expand Local Policies and select Security Options
Under Network Security: LAN Manager Authentication Level Change the setting from Send NTMLv2 response only to Send LM & NTLM - use NTLMv2 session if negotiated
Under Network Security: Minimum session security for NTLM SSP Based (including secure RPC) Clients Change the setting from require 128 bit to unchecked (No Minimum)
My System SpecsSystem Spec
02 Jan 2010   #3

Windows 7 Ultimate - 32 bit.
 
 

PatWhatsThat, Thanks for taking the time to help, but that doesn't seem to fix the problem
My System SpecsSystem Spec
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02 Jan 2010   #4
aem

Windows 7 Ultimate 64Bit
 
 

Hi can you summary what needs to be mapped, from where to where?
My System SpecsSystem Spec
02 Jan 2010   #5

Windows 7 Ultimate - 32 bit.
 
 

Hi, I need to map the three RAID volumes on the DNS-343 network storage device to drives on each of the two Windows 7 PCs (Study and Media - PC) . See attached PDF file. These volumes are already mapped successfully to drives on the Laptop computer.


Attached Files
File Type: pdf Network.pdf (158.5 KB, 337 views)
My System SpecsSystem Spec
02 Jan 2010   #6

Windows 7 Professional
 
 

So, if you open file Explorer, browse your network for the DNS-343, you don't see it? Did you enable CIFS on the DNS-343? Is it on the same subnet and workgroup? I have a ReadyNas Duo and I can see it just fine.

Did you try to force it by typing \\dns-343 name\sharename into windows explorer?

or \\ipaddress for dns-323\ into explorer?

Can you web browse it from the Windows 7 PC?
My System SpecsSystem Spec
02 Jan 2010   #7

Windows 7 Ultimate - 32 bit.
 
 

JEFF

Don't seem to be able to configure CIFS through the DNS-343 device management interface.

Yes have tried forcing the IP in Windows explorer.

Have been tinkering with Services.msc and have one PC now able to access files on the DNS-343. Just trying to work out what the successful tweak was so I can emulate it on the other PC.
My System SpecsSystem Spec
07 Feb 2012   #8

window 7 64bit
 
 
did you find the tweak that worked

Hi;
I have a similar problem, but mine is that a I have one laptop that can connect to the DNS-343 and two that can't unless hard wired. If the RJ45 cable is plugged in everything is ok, un-plug it and you can't connect. All machines are on Windows 7.
My System SpecsSystem Spec
25 Oct 2012   #9

Windows 7 - 64bit
 
 

Try changing these settings in Control Panel>Administrator Tools>Local Security Policy:

* Computer Configuration\Windows Settings\Security Settings\Local Policies\Security
Microsoft network client: Digitally sign communications (always): Disabled

* Computer Configuration\Windows Settings\Security Settings\Local Policies\Security
Network security: LAN Manager authentication level: Send LM & NTLM - use NTLMv2 session security if negotiated

Restart the system after making changes.
My System SpecsSystem Spec
Reply

 Unable to Map network drives.




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