Filesharing no longer working

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provlima

Thread Starter
Joined
Dec 4, 2008
Messages
16
I have a wireless network setup comprising of a Windows 7 desktop and a Vista laptop

Everything worked fine but I suddenly have found that my computer sharing network setup is no longer working.



When I try to access my Desktop PC from my laptop the Desktop Computer PC icon shows,but when I click on it I get a message
“Windows cannot access Desktop Windows has sent the request to the DNS server and that name was unknown"

When I try to access the laptop from my Desktop’s Windows7 (control panel>network sharing center) the Laptop icon no longer shows as it did previously.


Any suggestions on what is wrong and how to fix the problem greatly appreciated!
 

TerryNet

Terry
Moderator
Joined
Mar 23, 2005
Messages
80,622
For both PCs please show ...

Start, Run, CMD, OK to open a command prompt:
(For Vista or 7 type CMD in the Search box after Start)

Type the following commands:

nbtstat -n

IPCONFIG /ALL

[Note that there is no space between the slash and ALL.]

Right click in the command window and choose Select All, then hit Enter.
Paste the results in a message here.

If necessary use a text file and removable media to copy the results to a computer with internet access.
 

provlima

Thread Starter
Joined
Dec 4, 2008
Messages
16
Terry..thank you for your help ...here are the results from the laptop and the desktop in the file sharing homegroup

LAPTOP RESULTS
Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.
C:\Users\Jim>nbtstat -n
Local Area Connection:
Node IpAddress: [0.0.0.0] Scope Id: []
No names in cache
Bluetooth Network Connection:
Node IpAddress: [0.0.0.0] Scope Id: []
No names in cache
Wireless Network Connection:
Node IpAddress: [192.168.1.132] Scope Id: []
NetBIOS Local Name Table

Name Type Status
---------------------------------------------
LAPTOP <00> UNIQUE Registered
WORKGROUP <00> GROUP Registered
LAPTOP <20> UNIQUE Registered
WORKGROUP <1E> GROUP Registered
WORKGROUP <1D> UNIQUE Registered
..__MSBROWSE__.<01> GROUP Registered

C:\Users\Jim>IPCONFIG/ALL

Windows IP Configuration

Host Name . . . . . . . . . . . . : LAPTOP
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : hsd1.md.comcast.net.

Ethernet adapter Bluetooth Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Bluetooth Device (Personal Area Network)
Physical Address. . . . . . . . . : 00-1C-26-F4-C7-31
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : hsd1.md.comcast.net.
Description . . . . . . . . . . . : Intel(R) Wireless WiFi Link 4965AGN
Physical Address. . . . . . . . . : 00-13-E8-8D-E6-AB
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::9999:c6f9:d177:1234%10(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.132(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Thursday, November 17, 2011 7:14:50 AM
Lease Expires . . . . . . . . . . : Friday, November 18, 2011 7:14:50 AM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 167777256
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-0E-5D-2E-99-00-1C-23-91-18-E8

DNS Servers . . . . . . . . . . . : 68.87.73.246
68.87.71.230
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : hsd1.md.comcast.net.
Description . . . . . . . . . . . : Broadcom 440x 10/100 Integrated Controlle
r
Physical Address. . . . . . . . . : 00-1C-23-A9-DF-59
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 6:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:4137:9e76:1cf2:5d4:bbde:cc8c(Prefe
rred)
Link-local IPv6 Address . . . . . : fe80::1cf2:5d4:bbde:cc8c%8(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Local Area Connection* 7:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{884E2065-77E8-4242-9EE6-2FFEA1D38
FEB}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 10:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : hsd1.md.comcast.net.
Description . . . . . . . . . . . : isatap.hsd1.md.comcast.net.
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Jim>

DESKTOP RESULTS
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\Jim>nbtstat -n
Wireless Network Connection:
Node IpAddress: [192.168.1.134] Scope Id: []

NetBIOS Local Name Table

Name Type Status
---------------------------------------------
WORKGROUP <00> GROUP Registered
DESKTOP <00> UNIQUE Registered
DESKTOP <20> UNIQUE Registered
WORKGROUP <1E> GROUP Registered

Wireless Network Connection 2:
Node IpAddress: [0.0.0.0] Scope Id: []

No names in cache

C:\Users\Jim>IPCONFIG/ALL

Windows IP Configuration

Host Name . . . . . . . . . . . . : DESKTOP
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : hsd1.md.comcast.net.

Wireless LAN adapter Wireless Network Connection 2:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual WiFi Miniport Adapter
Physical Address. . . . . . . . . : C2-17-FE-8E-DD-9A
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : hsd1.md.comcast.net.
Description . . . . . . . . . . . : DW1525 (802.11n) WLAN PCIe Card
Physical Address. . . . . . . . . : C4-17-FE-8E-DD-9A
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::d9e3:9d10:a46:e387%10(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.134(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Thursday, November 17, 2011 6:55:36 AM
Lease Expires . . . . . . . . . . : Friday, November 18, 2011 7:34:31 AM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 197400574
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-13-3A-CF-A1-A4-BA-DB-F9-77-08

DNS Servers . . . . . . . . . . . : 68.87.73.246
68.87.71.230
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.hsd1.md.comcast.net.:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : hsd1.md.comcast.net.
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

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. . . . . . . . . . . : 2001:0:4137:9e76:2496:3823:bbde:cc8c(Pref
erred)
Link-local IPv6 Address . . . . . : fe80::2496:3823:bbde:cc8c%15(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Local Area Connection* 33:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter isatap.{8B585988-239E-4908-87E4-2BD730081AA8}:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #2
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Jim>
 

TerryNet

Terry
Moderator
Joined
Mar 23, 2005
Messages
80,622
That all looks good, which is bad for trouble shooting 'cause it gives no clues (that I see).

Doubt the following will help, but won't hurt. On both machines in a Command Prompt do:

ipconfig /flushdns


Since file sharing was working and suddenly stopped a suspect is a corrupted non-Windows firewall or security suite on one or both machines. What one(s) do, or did, you have on each?
 

provlima

Thread Starter
Joined
Dec 4, 2008
Messages
16
I can now access my Desktop from my Vista laptop, but cannot access my laptop from my W7 desktop

When I try to acess my Vista laptop from my W7 desktop (control panel>network sharing center)
the network sharing center shows Desktop Network name and Internet, but no Laptop

I am using Commodo Firewall on my Laptop and Windows Firewall on my Desktop
 

TerryNet

Terry
Moderator
Joined
Mar 23, 2005
Messages
80,622
Take two aspirin and call me in an hour. :D

No, I'm not really giving medical advice. The flushdns wipes out the names in memory and the way the Computer Browser service works it can take up to 15 minutes, even much longer in some cases, for all the computers to get updated. The Vista is the Master Browser, so it makes sense that it will know about other computer names before any other computers on the network are updated.

So, seriously, is it working now or still the same issue as your last post?
 

provlima

Thread Starter
Joined
Dec 4, 2008
Messages
16
Thanks for your help.
I did the flushdns on both PCs and still cannot access my laptop from my Desktop.
Accessing my Desktop from my Laptop works fine.
When I tried the file sharing troubleshooter on my Desktop it reported the Laptop would not accept a connection
Thanks again
 

TerryNet

Terry
Moderator
Joined
Mar 23, 2005
Messages
80,622
You're welcome. :) You can probably reinstall Comodo now if desired. Sometimes they get corrupted and need to be "nuked" to clean them up.

You can mark this solved using the
button at the upper left of the page.
 
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