Can't access internet from 1 pc on a wireless network.

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Guest

I have a wireless network set up at home, and have recently added a new
computer to it. This new computer is unable to access the internet through
the router, all other computers on the network can. I have only had this
problem since upgrading Windows on the new computer to XP Pro with service
pack 2 installed, before this it was on a basic install of Windows XP Pro and
worked fine. I can access the configuration page for my router using a
browser, so it seems likely that it is connected to the network, and I know
that it is my network since there are no other wireless networks in the area.
I have tried changing the MTU settings but that hasn't worked, please can
someone help me with this problem.
 
Can you ping a public IP? if yes, can you ping yahoo.com? This troubleshooting may help,

How to troubleshoot internet access issues How to troubleshoot the Internet Access issues. You just setup a network and all networking computers can see each other. However, you have one of some ...
www.howtonetworking.com/Internet/internetaccess0.htm


Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
I have a wireless network set up at home, and have recently added a new
computer to it. This new computer is unable to access the internet through
the router, all other computers on the network can. I have only had this
problem since upgrading Windows on the new computer to XP Pro with service
pack 2 installed, before this it was on a basic install of Windows XP Pro and
worked fine. I can access the configuration page for my router using a
browser, so it seems likely that it is connected to the network, and I know
that it is my network since there are no other wireless networks in the area.
I have tried changing the MTU settings but that hasn't worked, please can
someone help me with this problem.
 
It is possible to ping a puplic IP, but not a web address (it can ping
64.233.183.103 but not google.com). I think that the DNS settings are correct
in so far as the DNS server addresses are the same as on other computers that
can access the internet. I tried to use the troubleshooting you suggested but
couldn't find anything that worked.
 
assuming you can ping a public IP, posting the result of nslookup here may help.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
It is possible to ping a puplic IP, but not a web address (it can ping
64.233.183.103 but not google.com). I think that the DNS settings are correct
in so far as the DNS server addresses are the same as on other computers that
can access the internet. I tried to use the troubleshooting you suggested but
couldn't find anything that worked.
 
In
Ashen said:
It is possible to ping a puplic IP, but not a web address (it can ping
64.233.183.103 but not google.com). I think that the DNS settings are
correct in so far as the DNS server addresses are the same as on
other computers that can access the internet.
Click to expand...

Post an ipconfig /all from a working computer and from this non-working
computer (unedited, and label which is which).
 
Ok, the ipconfig /all for one of the working computers looks like this:

Windows IP Configuration

Host Name: Laptop
Primary DNS Suffix:
Node Type: Unknown
Ip Routing Enabled: No
WINS Proxy Enabled: No
DNS Suffix Search List: Belkin

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix: Belkin
Description: Broadcom 802.11g Network Adapter
Physical Address: 00-14-A4-55-19-7F
Dhcp Enabled: Yes
Autoconfiguration Enabled: Yes
IP Address: 192.168.2.3
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.2.1
DHCP Server: 192.168.2.1
DNS Servers: 194.168.8.100 186.68.21.13
Lease Obtained: 20 August 2006 18:55:09
Lease Expires: 19 January 2038 04:14:07

The computer that doesn't work looks like this:

Windows IP Configuration

Host Name: Laston
Primary DNS Suffix:
Node Type: Unknown
IP Routing Enabled: No
WINS Proxy Enabled: No

Ethernet Adapter Wireless Network Connection:

Connection-specific DNS Suffix:
Description: Belkin Wireless 54mbps Desktop Adapter
Physical Address: 00-11-50-1C-26-21
Dhcp Enabled: No
IP Address: 192.168.2.4
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.2.1
DNS Servers: 194.168.8.100 186.68.21.13

I know that I do not have DHCP enabled on the non-working computer, but it
will not even connect to the network with it enabled, I get a limited or no
connectivity warning.

As for nslookup it says the same thing on both the working computers and the
non-working one:
Default Server: cache2.ntli.net
Address: 194.168.8.100

Thanks for all your help so far, I hope you can sort out this problem for me.
 
In
Ashen said:
Ok, the ipconfig /all for one of the working computers looks like
this:

Windows IP Configuration

Host Name: Laptop
Primary DNS Suffix:
Node Type: Unknown
Ip Routing Enabled: No
WINS Proxy Enabled: No
DNS Suffix Search List: Belkin

Ethernet adapter Wireless Network Connection:

Connection-specific DNS Suffix: Belkin
Description: Broadcom 802.11g Network Adapter
Physical Address: 00-14-A4-55-19-7F
Dhcp Enabled: Yes
Autoconfiguration Enabled: Yes
IP Address: 192.168.2.3
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.2.1
DHCP Server: 192.168.2.1
DNS Servers: 194.168.8.100 186.68.21.13
Lease Obtained: 20 August 2006 18:55:09
Lease Expires: 19 January 2038 04:14:07

The computer that doesn't work looks like this:

Windows IP Configuration

Host Name: Laston
Primary DNS Suffix:
Node Type: Unknown
IP Routing Enabled: No
WINS Proxy Enabled: No

Ethernet Adapter Wireless Network Connection:

Connection-specific DNS Suffix:
Description: Belkin Wireless 54mbps Desktop Adapter
Physical Address: 00-11-50-1C-26-21
Dhcp Enabled: No
IP Address: 192.168.2.4
Subnet Mask: 255.255.255.0
Default Gateway: 192.168.2.1
DNS Servers: 194.168.8.100 186.68.21.13

I know that I do not have DHCP enabled on the non-working computer,
but it will not even connect to the network with it enabled, I get a
limited or no connectivity warning.
Click to expand...

If you can't get a DHCP-configured address, try reinstalling your NIC
driver - download/run Winsockfix from a trusted source (I use the
majorgeeks.com one) and see if you can get that running. It indicates a
larger problem.
 
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