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Some laptops do have a key to turn off & on the wireless card. Fn key with antenna & waves like (( )) on each side.
But what I believe your looking for is on the bottom of the screen
next to the clock. Put the mouse pointer over each icon till a popup
appears telling what it dose one should say "wireless networks available". Right click on it & select the network you want to join. You may need a pass code
A bit more information would be help full. Here is a step by step from Dell. 1. Locate the wireless connection icon in the taskbar of the laptop, bottom right by the clock. 2. Right-click on the icon. 3. Click "View Available Wireless Networks" 4. Double-click on the network that belongs to you. 5. Allow the network to load. Once it has finished loading, the word "Connected" should appear to the right of the network . 6. Open a Web browser.
Is there a button on the laptop somewhere to turn on/off network card.
If you do not have a wireless router which is connected to your Internet servce provider and now your laptop does not connect to the Internet then, you could have connected to your neighbour's Internet connection. The reason why you cannot now get Internet access is, this neighbour has discovered unauthorized access to their unprotected wireless connection and has taken security steps to prevent further unauthorized access.
If you have a wireless router and it is connected to the DSLor cable modem then -
To connect to your wireless router, the router needsits wireless settings to be configured with the SSID, encryption key etc., alsothe wireless cards in all the laptops/computers needs to be configured withthese router's wireless settings. Then the laptops/desktop computers cancommunicate with your wireless router and access the Internet via the DSL or cable modem.
The wireless switch is on the front edge of the laptop. With the lid closed, its position on the front edge is just under the right latch of the lid. Turn on by sliding the switch to the right momentarily. You should see Wireless LAN Enabled in large green letters appear briefly at the bottom of the screen. A single screen icon should appear in the desktop's Toolbar at the bottom right of the screen. If the icon doesn't appear, then likely the Wireless Network Connection is disabled. To enable do the following steps....
1. click start button at bottom right of screen
2. click Control Panel
3. in the Control Panel window, click Network Connections
4. right click Wireless Network Connection
5. on the drop-down menu click enable
If there is no Wireless Network Connection in the Control Panel's Network Connection, then the setting up of the Wireless Network Connection was skipped when the laptop was first unpacked and setup. In Control Panel, click on the Wireless Network Setup Wizard to setup the Wireless Network Connection.
In order to set up the wireless client, you will need to know the service set identifier (SSID), the Wireless Encryption Protocol (WEP) key and the channel and mode.
Boot up the laptop and plug in the WiFi card. This will not be necessary if your laptop has an integrated WiFi card.
Install any drivers needed to use the WiFi card. Insert the disc that came with the WiFi card and follow the on-screen installation process. Most discs will trigger a new hardware wizard that makes installation extremely simple.
Double-click on the "WiFi Connection" icon. It can be found in the system tray at the bottom of the laptop screen.
Click on "Properties."
Select the "Wireless Networks" tab.
Use the "Add" button at the bottom of the dialog if your WiFi network isn't in the "Available Networks" section.
Click on "Configure" when you see your network's SSID in the "Available Networks."
Enter your network's SSID and WEP key.
Click on "Start," then choose "Connect To" and "Wireless Network Connection." Your computer should now be able to access the WiFi network. If the WiFi network is connected to the Internet, it should also be able to connect to the Internet.
Hope it helps, if so do rate the solution
i assume that you're connecting your laptop wirelessly. if so, check if the laptop is connected to the wireless signal of the router. there would be a wireless icon that can be usually found at the bottom right hand corner of the screen (if you are using windows but if your laptop is a mac, look for the airport icon) that'll detect the available wireless signals. make sure to connect to your own network and enter your correct wireless security (network key) if you have enabled it.
hope this'll help you but in case if not, just provide the exact model of your router, the model of the laptop, your operating system and the model of the wireless card.