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Windows 10 UNC Path Problem

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Sunday, July 2, 2017 7:10 AM

So  I can't connect to our File Server (windows 2008) or any client that running windows 10  from my Windows 10 machine via the mapped drives or UNC paths. All machines have same subnetmask with different IP Range example: 172.16.2.0/32   or 172.16.49.0/32

Just I have problem when home and destination IP are not in same zone and both of them running windows 10 OR windoes serve 2008 R2.For Example home IP is in 172.16.2.0 range and destination IP is in 172.16.49.0 range.

  • I am able to ping the server by IP and Host Name
  • I am able to RDP into the server
  • I am able to connect fine with other Windows 7 machines from the domain and other windows 7 machines can open my windows 10 shared folders via UNC Path

Current Advanced Sharing Settings on both the server and my PC
Network Discovery: Off

File and Printer Sharing: On

Public Folder Sharing: On

I've tried the following:

  • Logged in to a Win 7 PC with my credentials and had no problem accessing the shares
  • Statically assigned myself an IP address
  • Flushed DNS and enabled Dynamic Address
  • ipconfig released and renewed multiple times
  • Disabled firewall on both the PC and Server 
  • Disabled UAC
  • Disabled Antivirus 
  • Enabled Network Discovery on both server and PC
  • Install window 10 fresh on new client and check them
  • Update windows

 but with all of these, i can not open windows 10 shared folders when that is on another IP  range .

Many thanks in advance for all the responses!

All replies (7)

Monday, July 3, 2017 7:23 AM | 1 vote

Hi， 

Consider if it's related to SMB settings, please enable SMB 1.0 on Windows 10 by following commands to check the results: 

1.

1. Run PowerShell as Administrator

2. Set-SmbClientConfiguration -RequireSecuritySignature 1

Answer Y when prompted to confirm the modification.

3. Set-ItemProperty -Path "HKLM:\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters" RequireSecureNegotiate -Value 0 -Force

2.

Control Panel / Programs and Features / Turn Windows Features On or Off and make sure SMB 1.0/CIFS File Sharing Support is ticked. 

See if your issue can be resolved. 

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Tuesday, July 4, 2017 9:32 AM

Hi,

thank you for your attention.I check that but Unfortunately, my problem is not resolved. I think that the SMB settings are okay because I do not have any problem inside the zone (with same IP range machines) and even with another OS version in another zone. just two windows 10 in different zone can not open each other unc path....

Friday, July 7, 2017 1:44 AM

Hi, 

Please post the output by running commands below on your 2 Windows 10 computers and the File shared computers. 

ipconfig /all

Also, let's see if we can fix this issue by clearing DNS catch on your Windows 10 computers. 

IPconfig /flushdns

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Saturday, July 8, 2017 7:52 AM

Hi,

I cleaned DNS catch several time but the issue was not resolved 

This is my config:

                                    

Windows IP Configuration

   Host Name . . . . . . . . . . . . : Win10FT
   Primary Dns Suffix  . . . . . . . :
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Ethernet:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Intel(R) 82574L Gigabit Network Connection
   Physical Address. . . . . . . . . : 00-50-56-B1-7E-CB
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv4 Address. . . . . . . . . . . : 172.16.49.158(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.252.0
   Default Gateway . . . . . . . . . : 172.16.51.250
   DNS Servers . . . . . . . . . . . : 172.16.48.9
                                       172.16.48.10

   NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Teredo Tunneling Pseudo-Interface:

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
   Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   IPv6 Address. . . . . . . . . . . : 2001:0:9d38:90d7:3c11:19bc:53ef:ce61(Preferred)
   Link-local IPv6 Address . . . . . : fe80::3c11:19bc:53ef:ce61%8(Preferred)
   Default Gateway . . . . . . . . . : ::
   DHCPv6 IAID . . . . . . . . . . . : 134217728
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-20-DC-25-F5-00-50-56-B1-7E-CB
   NetBIOS over Tcpip. . . . . . . . : Disabled

Thanx For your attention.

Wednesday, July 12, 2017 7:13 AM

Hi, 

This issue only happens on Windows 10. I do not know what the reason can be.....

Wednesday, July 12, 2017 8:03 AM

Hi, 

Please test if you can access its own share folder in Explorer, we need to confirm that it's a network issue or system file issue.

Then try this guide to see if the SMB work fine. 

PS C:\ dir \localhost\c$ 
  
Directory: \localhost\c$ 
  
Mode                LastWriteTime     Length Name 
—-                ————-     —— —- 
d—-         5/19/2012   1:54 AM            PerfLogs 
d-r–          6/1/2012  11:58 PM            Program Files 
d-r–          6/1/2012  11:58 PM            Program Files (x86) 
d-r–         5/24/2012   3:56 PM            Users 
d—-          6/5/2012   3:00 PM            Windows 
  
PS C:\ Get-SmbConnection -ServerName localhost 
  
ServerName  ShareName  UserName            Credential          Dialect  NumOpens 
———-  ———  ——–            ———-          ——-  ——– 
localhost   c$         DomainName\UserN… DomainName.Testi… 3.02     0

 

You have about 10 seconds after you issue the “dir” command to run the “Get-SmbConnection” cmdlet. The SMB client will tear down the connections if there is no activity between the client and the server. It might help to know that you can use the alias “gsmbc” instead of the full cmdlet name.

Also, upload the Microsoft-Windows-SmbClient%4Connectivity.evtx event log (under C:\Windows\System32\winevt\Logs) onto OneDrive and share the link here for our research. 

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Sunday, July 16, 2017 9:41 AM

Hi,

I  try these guides and now i copy results below .you can check my  Microsoft-Windows-SmbClient%4Connectivity.evtx event log on this link:

https://1drv.ms/u/s!AhbMvF9q8ZjiehJ5sPP5aQrttfY

now my command results:

PS C:\ Get-SmbConnection -ServerName localhost
Get-SmbConnection : No MSFT_SMBConnection objects found with property 'ServerName' equal to 'localhost'.  Verify the
value of the property and retry.
At line:1 char:1

  • Get-SmbConnection -ServerName localhost

    + CategoryInfo          : ObjectNotFound: (localhost:String) [Get-SmbConnection], CimJobException
    + FullyQualifiedErrorId : CmdletizationQuery_NotFound_ServerName,Get-SmbConnection

PS C:\ Get-SmbConnection -ServerName filesrv02
Get-SmbConnection : No MSFT_SMBConnection objects found with property 'ServerName' equal to 'filesrv02'.  Verify the
value of the property and retry.
At line:1 char:1

  • Get-SmbConnection -ServerName filesrv02

    + CategoryInfo          : ObjectNotFound: (filesrv02:String) [Get-SmbConnection], CimJobException
    + FullyQualifiedErrorId : CmdletizationQuery_NotFound_ServerName,Get-SmbConnection