Workgroup is not accessible, Node type has changed

[Guest]

I have a small network of 5 computers (3 desktops, 2 notebooks), all running
XP Pro and sharing resources. I few days ago one of the notebooks stopped
accessing all the other shared computers and resources. I uninstalled all
antivirus, antispyware, and firewall software with no change in the problem.
What I have found is that when I run IPconfig /all the node type is now
peer-peer. I have been lately using the notebook in the field with a
crossover cable to direct connect to PLCs to configure them. If that is my
problem, How do I get it out of the this mode?

 

[Steve Winograd [MVP]]

I have a small network of 5 computers (3 desktops, 2 notebooks), all running
XP Pro and sharing resources. I few days ago one of the notebooks stopped
accessing all the other shared computers and resources. I uninstalled all
antivirus, antispyware, and firewall software with no change in the problem.
What I have found is that when I run IPconfig /all the node type is now
peer-peer. I have been lately using the notebook in the field with a
crossover cable to direct connect to PLCs to configure them. If that is my
problem, How do I get it out of the this mode?

To fix the "Peer-to-Peer" node type (which is actually called
"Point-to-Point", but ipconfig gets it wrong):

1. Run the registry editor.

2. Open this key:

HLM\System\CurrentControlSet\Services\Netbt\Parameters

3. Delete this value if it's present:

DhcpNodeType

4. If it isn't already present, create a DWORD value called
"NodeType".

5. Set NodeType to 1.

6. Reboot.

For details, see these Microsoft Knowledge Base articles:

Default Node Type for Microsoft Clients
http://support.microsoft.com/default.aspx?scid=kb;en-us;160177

TCP/IP and NBT Configuration Parameters for Windows XP
http://support.microsoft.com/default.aspx?scid=kb;en-us;314053

What is a PLC? Power line conditioner?
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com

 

[Ron Lowe]

What is a PLC? Power line conditioner?

From the context, I'd say Programmable Logic Controller.
http://en.wikipedia.org/wiki/Programmable_logic_controller

Basically, microcontroller based thingys which we use to controll industial
equipment and plant. And some of my house

 

[Steve Winograd [MVP]]

From the context, I'd say Programmable Logic Controller.
http://en.wikipedia.org/wiki/Programmable_logic_controller

Basically, microcontroller based thingys which we use to controll industial
equipment and plant. And some of my house

Thanks, Ron.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com

 

[Mark]

Steve,

Could you tell me what the typically setting should be for a domain
environment? Here is an example of one computer on my network.
Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : IC-16141
Primary Dns Suffix . . . . . . . : computer.ad-test
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : computer.ad-test
computer.edu

Ethernet adapter Local Area Connection 7:

Connection-specific DNS Suffix . : computer.edu
Description . . . . . . . . . . . : Intel(R) PRO/1000 PL Network
Connect
ion
Physical Address. . . . . . . . . : 00-E0-B8-96-13-34
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 138.92.15.34
Subnet Mask . . . . . . . . . . . : 255.255.248.0
Default Gateway . . . . . . . . . : 138.92.8.1
DHCP Server . . . . . . . . . . . : 138.92.240.5
DNS Servers . . . . . . . . . . . : 138.92.8.6
138.92.8.4
Lease Obtained. . . . . . . . . . : Tuesday, November 18, 2008
8:13:51 A
M
Lease Expires . . . . . . . . . . : Tuesday, November 18, 2008
8:43:51 A
M

C:\>
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