Network Communications over IP

[Ken Roof]

I've got a situation for all you hot-to-trot pros out
there. It's got me stumped!

I've got an XP-Pro, custom built machine that is on a
home network using peer-to-peer. The other two are an ME
and XP-Pro, IBM laptop. I can gain access to the
Internet from all three; I can ping the ME and laptopfrom
each other; from those two I can ping, and get a reply,
fromt the Custom machine. ME and the laptop can see each
other with windows and can map as well. The only pain is
the Custom machine. With XP-Pro, it only accesses the
Internet. It can ping the other two machines, but XP-Pro
does not see any other systems on the network. I need to
map the shared printers on this machine to the others; in
essence...a print server. Sharing is set on the Custom
machine, as is on all the others. I had an MCSE come in
and he cannot figure it out. We tried to assign the
machine as a master browser, but no luck.

HELP!!!! I have a customer whose sole purpose for this
network was to print from all her systems to the two
printers attached to the Custom.

 

[Sono]

Hope, they all on the same workgroup, just check them.
Make sure there's no firewall (it could be McAfee or
something else) installed. If it is disable it temperarily
to see that works.

 

[Steve Winograd [MVP]]

I've got a situation for all you hot-to-trot pros out
there. It's got me stumped!

I've got an XP-Pro, custom built machine that is on a
home network using peer-to-peer. The other two are an ME
and XP-Pro, IBM laptop. I can gain access to the
Internet from all three; I can ping the ME and laptopfrom
each other; from those two I can ping, and get a reply,
fromt the Custom machine. ME and the laptop can see each
other with windows and can map as well. The only pain is
the Custom machine. With XP-Pro, it only accesses the
Internet. It can ping the other two machines, but XP-Pro
does not see any other systems on the network. I need to
map the shared printers on this machine to the others; in
essence...a print server. Sharing is set on the Custom
machine, as is on all the others. I had an MCSE come in
and he cannot figure it out. We tried to assign the
machine as a master browser, but no luck.

HELP!!!! I have a customer whose sole purpose for this
network was to print from all her systems to the two
printers attached to the Custom.

These tips should help you get everything working:

1. Permanently disable XP's built-in Internet Connection Firewall on
local area network connections -- it's for use only on a direct modem
connection to the Internet. Disable and un-install all other firewall
programs while troubleshooting. When un-installing a firewall
program, use the un-install procedure provided by the manufacturer .
Don't use Control Panel | Add or Remove Programs, which might not
completely un-install it.

For more information, see:

Windows XP Internet Connection Firewall
http://www.practicallynetworked.com/sharing/xp/ic_firewall.htm

2. Use only one protocol for File and Printer Sharing. If the network
needs more than one protocol, unbind File and Printer Sharing from all
but one of them. Details here:

Windows XP Network Protocols
http://www.practicallynetworked.com/sharing/xp/network_protocols.htm

3. Make sure that NetBIOS over TCP/IP is enabled on all computers.
Details here:

Enable NetBIOS Over TCP/IP (NetBT)
http://www.practicallynetworked.com/sharing/troubleshoot/netbt.htm

4. Run "ipconfig /all" on XP and look at the "Node Type" at the
beginning of the output. If it says "Peer-to-Peer" (which should
actually be "Point-to-Point") that's the problem. It means that the
computer only uses a WINS server, which isn't available on a
peer-to-peer network for NetBIOS name resolution.

If that's the case, run the registry editor, open this key:

HLM\System\CurrentControlSet\Services\Netbt\Parameters

and delete these values if they're present:

NodeType
DhcpNodeType

Reboot, then try network access again.

If that doesn't fix it, open that registry key again, create a DWORD
value called "NodeType", and set it to 1 for "Broadcast" or 4 for
"Mixed".

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
--
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