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Things You'll Need
Router compatible with modem
Internal or external wireless network adapter
Prepare the Network
Purchase and setup a wireless broadband router by interfacing it with your wired computer. Choose a router that is compatible with your broadband modem and that supports the wireless network type you desire.
Enable WPA or WPA-2 security, and change your router's default password. Give your SSID or wireless network a memorable name.
Connect your modem to the WAN (wide area network) port on your router.
Install an Internal Card
Purchase a wireless network card that is compatible with the router you purchased and with your computer. For example, if you bought a 802.11 b/g router, do not purchase an 802.11 n adapter.
Shut down your computer. Remove all cables and peripheral devices.
Remove the left side panel while facing the front of the case. You may need to remove screws or to manipulate latches and notches. Consult your case or computer manufacturer's documentation if you are unsure of how to remove the panel.
Clip the metal part of the anti-static wrist bracelet to a metal object, and ******** the bracelet.
Locate an available PCI or PCI-Express slot. Unscrew the screw that secures the slot cover that corresponds with the slot, then remove the slot cover.
Line up the wireless adapter's pins with the slot. Insert the card until it clicks into place. Do not force the card into the slot, or you may damage the card's connectors. If you feel resistance, remove the card, line up the card with the slot again, and reinsert.
Secure the card with the slot cover screw. Reattach the side panel, and replace any screws you removed earlier.
Reinsert all cables, and plug in all peripherals. Boot the computer.
Allow Windows the opportunity to detect the card. It should automatically install the drivers for the card. If you have updated drivers, insert the disk and install according to on-screen instructions.
Install an External Card
Boot up your computer.
Insert your external wireless adapter into the appropriate slot. For example, if you purchased a USB slot, insert it into a USB port.
Allow Windows the opportunity to detect the card. It should automatically install the drivers for the card. If you have updated drivers, insert the disk and install according to on-screen instructions
Double-click the network icon in the task bar.
Highlight your wireless network. Windows will display the name you entered when setting up your router
Click the "Connect" button.
Enter and verify the security key you created when setting up the router. Click on "Connect."
If you have further query then try to let me know.
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If you are using an internal WIFI card, go to Control panel . System/ device manager and see if, under the network tab (network with a + sign next to it) the wifi card appears and more importantly, appears with a yellow ! mark next to it. If it does, it indicates there is a problem with the device.
On the base of the laptop. you will find a cover plate, open this and check that there are two wires coming from the card, one black and one white, see that they are connected correctly.
After that, and I'm guessing that your laptop is possibly an HP, or Toshiba or Dell, I would think that the internal card or card circuitry has failed or is failing. Your best option would then be to obtain a USB wireless dongle and use that instead,as replacing teh card sometimes only offers a temporary solution
You can't with most TVs (you would need a video out option on the TV and a video in on the laptop). Instead get a TV tuner card (to fit the slot on your laptop), a USB TV tuner or a set-top box for the purpose. Either use the included software or a program of a similar type for recording. (Windows Media Center probably will work.)
In addition to a wireless router you will need a wireless reciever for each PC you wish to have working simultaneously (assuming the PC does not already have a wireless networking capability) .
The wireless receiver is usually a USB or laptop PC slot device which you plug in to the PC and after installation of the necessary software (usually supplied with the device) you can surf wirelessly. The USB type wireless devices are about GB£20 to buy .
-if you tried to install it before, it could be that some components of the card were already been installed in your computer that's why it's not recognizing the card anymore. if so, (1) go to your device manager and check if there's any network device/other devices that has a red exclamation point. check properties and see if the driver is installed properly or not. if not, click on update driver. if so, (2) try to uninstall any software that has been installed for the card (if you have installed any), take the card out of your computer, reboot, and install the card again.
-if it's just your first time installing it, try another pcmcia slot (if there's any available slot) for laptops or another pci slot for desktops. you can also try to connect the card to another computer to isolate if there's a problem with your card or with the slot
i hope this'll help you but in case you still have the same problem, just provide the model number of your wireless card and the OS of your computer