Laptop connected to wireless , skype is connected but can not browse internet

[hshi]

Hi there:
I have a weird problem here.
I have two laptops. Laptop A is my personal one using at home. Laptop B is my company laptop...The problem is about my laptop B
When I use my laptop B at work, everything works perfectly... When I get
home, this laptop could connect to Skype but just can not browse website...
I used ping and found that it can only ping IP address instead of websites...
I first thought that maybe the DNS server was screwed . Then I used my
laptop A to test, Laptop A and Laptop B have the identical settings, both
use Automatic DHCP server, settings on the TCP/IP are identical...
Laptop A works fine, can ping website and browse websits with a chime....
I then followed the Instructions and posted the following info and hope someone
here could give me some hints...BTW, I have the genuine windows xp pro cd.

thanks

Hui

P.S It was on the Virus/Trojan/Spyware Help section but the moderator suggests me to put here as he/she could not find any sign of virus...

[johnwill]

Try these simple tests.

Hold the Windows key and press R, then type CMD (COMMAND for W98/WME) to open a command prompt:

In the command prompt window that opens, type type the following commands one at a time, followed by the Enter key:

NOTE: For the items below in red surrounded with < >, see comments below for the actual information content, they are value substitutions from the previous IPCONFIG command output! Do NOT type <computer_IP_address> into the command, that won't work. Also, the < and > in the text is to identify the parameters, they are also NOT used in the actual commands.

Do NOT include the <> either, they're just to identify the values for substitution.

IPCONFIG /ALL

PING <computer_IP_address>

PING <default_gateway_address>

PING <dns_servers>

PING 74.125.45.100

PING yahoo.com

Right click in the command window and choose Select All, then hit Enter to copy the contents to the clipboard.
Paste the results in a message here.

<computer_IP_address> - The IP Address of your computer, obtained from the IPCONFIG command above. (For Vista/Win7, the IPv4 Address)

<default_gateway_address> - The IP address of the Default Gateway, obtained from the IPCONFIG command above.

<dns_servers> - The IP address of the first (or only) address for DNS Servers, obtained from the IPCONFIG command above.

If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.