Unable to connect laptop to Internet.

Question

I have an iMac, pc and two laptops. All had a wireless connection to the internet via an old Belkin router which died this week. I purchased an Airport extreme 802.11n and set up a new network with this. I had no problem until I came to the last laptop running XP. It picks up my network but when I go to connect it allows connection but recognises it as an unidentified public network and only gives local access to the network and not the internet. I have tried all my limited knowledge allows but cannot get laptop to connect to internet. Can anyone help.

Answer 1

Ok, let's try this one step at a time, if you don't mind.
Let's start by connecting the Vista laptop to the AEBSn by Ethernet. Can it access the Internet now?
While connected by Ethernet; From the Vista desktop, open a Command window by entering cmd into the Search window, and then, press <Enter>.
At the command prompt, enter ipconfig /all, and then, press <Enter>. In the resulting display, under Ethernet adapter Local Area Connection, note the values for:
o DHCP Enabled
o Autoconfiguration Enabled
o IPv4 Address
o Default Gateway
o DHCP Server
o DNS Servers
I would expect that both DHCP Enabled & Autoconfiguration Enabled values should be "Yes." The IPv4 Address value should be something like: 192.168.n.n or 10.0.1.n, depending on how you have the AEBSn configured for DHCP. The Default Gateway should be something like 192.168.1.1 or 10.0.1.1, and there should be at least one IP address for the DNS Servers field.