I'm not quite sure what you mean.
If you used OneCare to secure your wireless network and now need to add your laptop, the following explains the process:
Add a computer or other device to a wireless network
You can add a computer or device to your wireless network either manually or by using the Add a PC wizard or manually.
Add a computer to a wireless network with the Add a PC wizard in Windows Live OneCare
If you used Windows Live OneCare to help secure a wireless network, you can automatically add another computer or device to the network.
- On the computer that you used to help secure the wireless network, open OneCare, and then click Change Settings.
- On Firewall tab, click Advanced settings.
- On the Network connections tab, click the wireless network that you want to add the computer to, and then click Details.
- Click Add a PC, and then follow the steps in the wizard.
Add a computer to a wireless network manually
For Windows XP:
- On the computer that you want to add, click Start, click Run, type ncpa.cpl, and then click OK.
- Click the wireless network connection, and then click View available wireless networks.
- From the list of available wireless networks, click the name of your wireless network, and then click Connect.
- When you're prompted, type and confirm the network key for your router, and then click Connect.
For Windows Vista:
- On the computer that you want to add, click Start, click in the Start Search box, type ncpa.cpl, and then press ENTER.
- From the list of available networks, right-click the name of your wireless network, and then click Connect/Disconnect.
- Click the wireless network that you want to connect to, and then click Connect.
- When you're prompted, type and confirm the network key for your router, and then click Connect.
Add a device to a wireless network manually
To add a device to a newly secured wireless network, follow the instructions in the manufacturer's manual for the device. If you need more help, contact the manufacturer of the device.
Note
You must enter the SSID and network key to add a device.
Find your network name and network key
To add a computer to a wireless network if you used the Add a PC wizard in Windows Live OneCare:
- On the computer that you used to help secure the wireless network, click Change Settings.
- On Firewall tab, click Advanced settings.
- On the Network connections tab, click your wireless network, and then click Details.
- The SSID and network key appear in the Security Information area.
Note
Changing the security settings on the router will disconnect any computer or device that was previously connected to the router.
Pasted from <http://help.live.com/help.aspx?project=onecarev2&market=en-us>
If, however, you mean that you cannot access files and folders on the laptop, the following may help:
Open OneCare on each of the computers.
Click Change Settings
On the firewall tab, click configure firewall
If the network is shown as Public, click Change Location to change it to "Home or Work."
Click the Advanced Settings button
Click Network connections tab.
If there are multiple active connections shown, you may need to disable the extras in your Windows network connections settings. (Network and Sharing Center, manage connections, in Vista; Right click My Network Places and select Properties on the Start menu in XP)
On the Ports and Protocols tab, add a check mark next to File and Printer Sharing - for subnet and Internet if the first setting alone (after all of the above are verified) does not allow Sharing to work.
If all of the above fail, please contact support.
How to reach support (FAQ) - http://social.microsoft.com/Forums/en-US/onecareinstallandactivate/thread/30400b52-7f26-4ba0-bc18-17e305329d90
-steve
~ Microsoft MVP Windows Live ~ Windows Live OneCare| Live Mesh|MS Security Essentials Forums Moderator ~
