no internet through network

[Guest]

I have a small network running upto 3 laptops and 3 desktops (not all at the
same time).

The main desktop is connected to the internet through a NTL cable modem, and
is conected to a 5 port netgear switch. All machines can see each other and
are able to transfere files, but cannot access the internet.

The main unit has 2 network cards, 1 for the modem and the other for the
switch. On running "ipconfig /all" on the main machine I get for the cable
moden an IP, Subnet, Gateway, DHCP and 2DNS address, and for the LAN an IP
and Subnet address. On the other desktop the "ipconfig /all" gives an IP,
Subnet, Gateway, DHCP and a DNS address, where the Gateway, DHCP and DNS are
the IP address for the main desktop.

All machines are running XP Home, but only the main desktop is running SP2
the others are on SP1. All have Client of MS Network, File and Printer
sharing, QoS packet, NWLink NetBIOS, NWLink IPX/SPX/NetBIOS and TCP/IP
checked.

I have run the wizard for home network setup and used the floppy disk on the
other machines, but still no joy.

Any ideas why the other machines are unable to access the internet?

 

[Robert L [MS-MVP]]

make sure the ICF doesn't block the internet traffic. Also, why do you load
so many protocols?

--
For more and other information, go to http://www.ChicagoTech.net


Don't send e-mail or reply to me except you need consulting services.
Posting on MS newsgroup will benefit all readers and you may get more help.


Bob Lin, MS-MVP, MCSE & CNE

Networking, Internet, Routing, VPN, Anti-Virus, Tips & Troubleshooting on
http://www.ChicagoTech.net
This posting is provided "AS IS" with no warranties.

 

[Chuck]

I have a small network running upto 3 laptops and 3 desktops (not all at the
same time).

The main desktop is connected to the internet through a NTL cable modem, and
is conected to a 5 port netgear switch. All machines can see each other and
are able to transfere files, but cannot access the internet.

The main unit has 2 network cards, 1 for the modem and the other for the
switch. On running "ipconfig /all" on the main machine I get for the cable
moden an IP, Subnet, Gateway, DHCP and 2DNS address, and for the LAN an IP
and Subnet address. On the other desktop the "ipconfig /all" gives an IP,
Subnet, Gateway, DHCP and a DNS address, where the Gateway, DHCP and DNS are
the IP address for the main desktop.

All machines are running XP Home, but only the main desktop is running SP2
the others are on SP1. All have Client of MS Network, File and Printer
sharing, QoS packet, NWLink NetBIOS, NWLink IPX/SPX/NetBIOS and TCP/IP
checked.

I have run the wizard for home network setup and used the floppy disk on the
other machines, but still no joy.

Any ideas why the other machines are unable to access the internet?

Andy,

Is the main desktop on all the time? Is it running ICS? Are there any problems
with internet access from the main desktop?

If you have cable broadband, with an Ethernet connected modem, you would be much
better off replacing the switch with a NAT router. The main desktop would not
be required, and all computers could be used independently. A broadband router
is not at all expensive, and with up to 6 computers, is well worth it.

What model Netgear switch is used? How do the laptops connect?

With any properly configured Windows XP network, there are many less required
network components. The only needed components are:
Client for Microsoft Networks
File and Printer Sharing for Microsoft Networks
QoS Packet Scheduler (optional)
Internet Protocol (TCP/IP)

The other components are not necessary, increase network complexity, and may
interfere with diagnosing your problem.

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.