Re: Computer disappearing from home network
- From: "Chuck [MVP]" <none@xxxxxxxxxxx>
- Date: Thu, 02 Aug 2007 16:30:13 -0700
On Thu, 02 Aug 2007 05:13:47 -0700, cr48202@xxxxxxxxx wrote:
On Jul 31, 9:33 pm, "Chuck [MVP]" <n...@xxxxxxxxxxx> wrote:
On Tue, 31 Jul 2007 16:34:07 -0700, cr48...@xxxxxxxxx wrote:
On Jul 31, 12:00 pm, cr48...@xxxxxxxxx wrote:
On Jul 31, 10:43 am, "Chuck [MVP]" <n...@xxxxxxxxxxx> wrote:
On Tue, 31 Jul 2007 04:03:30 -0700, cr48...@xxxxxxxxx wrote:
I am having a problem with a singlecomputer(hard wired to router) on
myhomenetwork(workgroup) disappearing from thenetwork. What I
mean by this is that is no longer appears in the list of computers
part of the workgroup (MyNetworkPlaces -> EntireNetwork->
Microsoft WindowsNetwork->Home). I can ping thiscomputerwithout
problem from other computers. I can search for thecomputername and
find it and view the resources that I have shared from other
computers. It just will not show up in the list if I go through My
NetworkPlaces -> EntireNetwork-> Microsoft WindowsNetwork->
Home. I have double checked all the IP settings and they are
correct. Thecomputerhas a hard coded IP address.
Is there a way to easily re-install thenetworkdrivers (tcpip on this
computer)? Is there an easy fix to this problem (the easier the
better)?
Thanks,
CR
CR,
If you're able to ping, and locate thecomputermanually, I'd not bet on
re-installingnetworkdrivers as a solution.
One of the most common causes of this problem would be a misconfigured or
overlooked personal firewall, or other security component.
<http://nitecruzr.blogspot.com/2005/05/your-personal-firewall-can-eith...>http://nitecruzr.blogspot.com/2005/05/your-personal-firewall-can-eith...
Also look at the NetBT setting for all computers.
<http://nitecruzr.blogspot.com/2006/07/advanced-windows-networking-usi...>http://nitecruzr.blogspot.com/2006/07/advanced-windows-networking-usi...
Look at the logs from "browstat status" and "ipconfig /all", from the problemChuck,
computer, and 2 of the others, and diagnose the problem. Read this article, and
linked articles, and follow instructions precisely (download browstat!):
<http://nitecruzr.blogspot.com/2005/05/troubleshooting-network-neighbo...>http://nitecruzr.blogspot.com/2005/05/troubleshooting-network-neighbo...
When I gethomeI will try these things out. One thing I forgot to
mention in the initial post is that after thecomputerfirst boots, it
is seen on thenetworkin the workgroup. But after 5 minutes or so itdisappears. I don't believe it is the firewall causing problem as I
reinstalled the firewall (zap) from scratch (first uninstalling, clean
up the registry, then reinstall). Windows firewall is disabled.
I will post my results.
CR
I have noticed that thecomputerthat disappears can initially see all
the computers on thenetworkbut after a few minutes can only see
itself in theHOMEworkgroup. I have also noticed that on the
computers that are working the thecomputerthat disappears initially
show up but disappears within a few minutes. After it disappears, I
can go to run and enter the ip address and the shares display. But if
I enter thecomputername instead it says "networkpath not found". I
have run the diagnostics as instructed on your webpage. The
diagnostics from thecomputerthat disappears from thenetworkis as
follows
IPCONFIG
========
Windows IP Configuration
Host Name . . . . . . . . . . . . : sebboh
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Hamachi:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HamachiNetworkInterface
Physical Address. . . . . . . . . : 7A-79-05-25-48-55
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : No
IP Address. . . . . . . . . . . . : 5.37.72.85
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . : 5.0.0.1
Lease Obtained. . . . . . . . . . : Tuesday, July 31, 2007
7:20:14 PM
Lease Expires . . . . . . . . . . : Tuesday, July 31, 2007
7:20:44 PM
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/100 VE
NetworkConnection
Physical Address. . . . . . . . . : 00-11-11-86-CD-DC
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.1
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.4
DNS Servers . . . . . . . . . . . : 192.168.0.4
NetBIOS over Tcpip. . . . . . . . : Disabled
Net Config
========
Server Name \\SEBBOH
Server Comment
Software version Windows 2002
Server is active on
NetbiosSmb (000000000000)
NetBT_Tcpip_{9D4D4829-D33F-41E1-A7CF-6A94F2C34C07} (7a7905254855)
Server hidden No
Maximum Logged On Users 10
Maximum open files per session 16384
Idle session time (min) 15
The command completed successfully.
Browstat
=======
Status for domainHOMEon transport \Device\NetBT_Tcpip_{9D4D4829-
D33F-41E1-A7CF-6A94F2C34C07}
Browsing is active on domain.
Master browser name is: SEBBOH
Master browser is running build 2600
1 backup servers retrieved from master SEBBOH
\\SEBBOH
There are 1 servers in domainHOMEon transport \Device
\NetBT_Tcpip_{9D4D4829-D33F-41E1-A7CF-6A94F2C34C07}
There are 1 domains in domainHOMEon transport \Device
\NetBT_Tcpip_{9D4D4829-D33F-41E1-A7CF-6A94F2C34C07}
On the workingcomputer, the logs are as follows
Ipconfig
======
Windows IP Configuration
Host Name . . . . . . . . . . . . : messedupdell
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Unknown
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) PRO/100 VE
NetworkConnection
Physical Address. . . . . . . . . : 00-0C-F1-8D-E3-99
Dhcp Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 192.168.0.15
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.0.4
DNS Servers . . . . . . . . . . . : 192.168.0.4
Netconfig
=======
Server Name \\MESSEDUPDELL
Server Comment
Software version Windows 2002
Server is active on
NetbiosSmb (000000000000)
NetBT_Tcpip_{49A1384F-8DE4-46AA-9092-99F074426775} (000cf18de399)
Server hidden No
Maximum Logged On Users 10
Maximum open files per session 16384
Idle session time (min) 15
The command completed successfully.
Browstat
=======
Status for domainHOMEon transport \Device
\NetBT_Tcpip_{49A1384F-8DE4-46AA-9092-99F074426775}
Browsing is active on domain.
Master browser name is: NASLITE
Could not open key in registry, error = -1073741790 Unable to
determine build of browser master: -1073741790
\\\\NASLITE . Version:04.09 Flags: 9a03 NT SERVER
1 backup servers retrieved from master NASLITE
\\NASLITE
There are 3 servers in domainHOMEon transport \Device
\NetBT_Tcpip_{49A1384F-8DE4-46AA-9092-99F074426775}
There are 1 domains in domainHOMEon transport \Device
\NetBT_Tcpip_{49A1384F-8DE4-46AA-9092-99F074426775}
Thanks,
CR
Hi CR,
The problem isn't hard to find, when you know what to look for. The solution
now may be another story.
IPCONFIG
========
Windows IP Configuration
Host Name . . . . . . . . . . . . : sebboh
Description . . . . . . . . . . . : HamachiNetworkInterface
Physical Address. . . . . . . . . : 7A-79-05-25-48-55
Description . . . . . . . . . . . : Intel(R) PRO/100 VE
NetworkConnection
Physical Address. . . . . . . . . : 00-11-11-86-CD-DC
Net Config
========
Server Name \\SEBBOH
Server Comment
Software version Windows 2002
Server is active on
NetbiosSmb (000000000000)
NetBT_Tcpip_{9D4D4829-D33F-41E1-A7CF-6A94F2C34C07} (7a7905254855)
Browstat
=======
Status for domainHOMEon transport \Device\NetBT_Tcpip_{9D4D4829-
D33F-41E1-A7CF-6A94F2C34C07}
Browsing is active on domain.
Master browser name is: SEBBOH
Master browser is running build 2600
1 backup servers retrieved from master SEBBOH
\\SEBBOH
There are 1 servers in domainHOMEon transport \Device
\NetBT_Tcpip_{9D4D4829-D33F-41E1-A7CF-6A94F2C34C07}
There are 1 domains in domainHOMEon transport \Device
\NetBT_Tcpip_{9D4D4829-D33F-41E1-A7CF-6A94F2C34C07}
Start with the browstat log.
Status for domainHOMEon transport \Device\NetBT_Tcpip_{9D4D4829-
D33F-41E1-A7CF-6A94F2C34C07}
Look at the net config log.
NetBT_Tcpip_{9D4D4829-D33F-41E1-A7CF-6A94F2C34C07} (7a7905254855)
So now we look for "7a7905254855" in the ipconfig log.
Description . . . . . . . . . . . : HamachiNetworkInterface
Physical Address. . . . . . . . . : 7A-79-05-25-48-55
Dohh. Another VPN gets in the way.
My suggestion is you start by un installing the Hamachi client, then rerun the
diagnostics and see if you get better result.
You'll want the net config log to show
NetBT_Tcpip_{9D4D4829-D33F-41E1-A7CF-6A94F2C34C07} (00111186CDDC)
which would point to
Description . . . . . . . .
...
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Chuck,
Hamachi was in fact the culprit. When I uninstalled it, the computer
would remain on the local network. I have played around with the
binding order to no avail. I will keep testing though.
Thanks,
CR
Please let us know if you come up with a definitive answer. Hamachi isn't going
to go away, so it would be good to know how to make it play properly with the
others.
--
Cheers,
Chuck, MS-MVP 2005-2007 [Windows - Networking]
http://nitecruzr.blogspot.com/
Paranoia is not a problem, when it's a normal response from experience.
My email is AT DOT
actual address pchuck mvps org.
.
- References:
- Re: Computer disappearing from home network
- From: cr48202
- Re: Computer disappearing from home network
- From: Chuck [MVP]
- Re: Computer disappearing from home network
- From: cr48202
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