Not all computers on the network can get on the internet

Check the wireless router and high-speed modem.

If the two are not powered on, or if the Ethernet cable connected the two is not completely inserted into both connection ports, you are unable to access the Internet on the Acer Aspire One laptop computer.

Activate the wireless Internet connection on the laptop computer.

Right-click the wireless icon on the desktop, then choose "Enable" from the pop-up menu.

Without activating the wireless receiver on the Acer Aspire One, the laptop is unable to detect any wireless network.

Select the appropriate network you wish to connect to.

Your computer may be attempting to connect to a different Internet connection, preventing you from access the network you desire. Right-click the wireless icon, select "Search for available wireless networks," then choose the network you want to access.

Restart the computer.

The system may have booted and failed to detect the wireless receiver. Restarting the computer corrects this issue.

hope this helps

if you have wireless acces point or 802.11 known as wi-fi,
there might be a problem in your laptop internet protocol, you laptop have an ip address already.
you can fix it by using your desktop, open your desktop go to control panel/network connection/status/
details.
copy the details information and put it to your laptop internet protocol. you can found it in network connection properties you can see Internet Protocol (tcp/ip) open it configure it manually. the last number of the ip address must bigger than the desktop. ex, 192.168.1.2 in desktop. the ip address of the laptop must be 192.168.1.3.

Give the default gateway address of your laptop computer in the desktop computer. this will solve your issue.

Go into network set up a shared Internet connection using ICS (Internet Connection Sharing) You can use Internet Connection Sharing (ICS) to share an Internet connection among two or more computers on a network. First, you need one computer, called the host computer, that is connected to the Internet and that has a separate connection to the other computers on your network. You enable ICS on the Internet connection. The other computers on your network then connect to the host computer, and from there to the Internet through the host computer's shared Internet connection.
If your computer is connected to a network, network policy settings might prevent you from completing these steps.
On the host computer (the computer whose Internet connection you plan to share):

1. Click to open Network Connections.
   
2. Right-click the connection that you want to share, and then click Properties. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.
   
3. Click the Sharing tab, and then select the Allow other network users to connect through this computer’s Internet connection check box.
   

the simpilist way to do that is to buy a wireless usb stick 15.00 then you can connect directly to update.and if u dont want kids using it for net pull the usb out .

Try logging into the router with your desktop hard-wired and find the 25-digit passcode and use that to log on to the wireless network with the laptop. If not, then check if connection is good by hard-wiring the router to the laptop. Let me know what happens or if you have solved the problem.

Hi i am Naren. You want to brow an your laptop

You may be running into a problem of your ISP only allowing one computer on the internet. while the internet is on can you access the internet from the desktop comcast originally setup?  If so that is more then likely your problem.

I have comcast myself and they told me they do not allow home networks. I fixed that problem by using the mac address cloning feature in my router.

The setup cd is also junk, all you should really need to do is:
1. unplug modem, router, and turn off computers
2. Plug modem into router
3. Plug computers into router (don't worry about wireless right now)
4. Turn on modem, wait 20 seconds or so for lights to set,
5. Turn on router. again wait for lights to set
6. Turn on ONE computer that is hard wired into the router
7 Try to surf the net.
8. If successfull try to connect wireless computers (Without using cd) and see if they surf.

If not call comcast and see if your computers are trying to obtain real-world ip's instead of LAN ip's like they should.
If so, you'll need to enable DHCP on the router.

Hi Alirahmani26,

From what I've gathered here, you're trying to use a wireless card on your laptop to connect to the Internet through your desktop computer. Are you using a wireless router somewhere in there? Or are you wanting to connect to the Internet FROM your laptop THROUGH your desktop computer? If the latter, are you planning to connect the laptop with a Cat-5 cable or with the wireless connection?

Ben

Is the Ethernet cable plugged into the laptop too? Are you on a router or switch?