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The laptop came standard without a wireless capability. There was an optional upgrade to include a 802.11 a/b wireless capability. But that is so slow that if you want wireless now you are best to buy a USB wireless dongle (they make them as small as the ones for mice now. It would be faster and cheaper than the upgrade.
Of course, if you have the software or are able to find the correct drivers that are compatible with your Operating System. You need to use a USB cable, or an Ethernet cable. If it has wireless communication capabilities then you can also connect it to the computer through the wireless.
Try this, In the bottom right corner of your desktop, is there a little picture of a computer screen with a couple of "sound waves" coming off it? If so, right click on it and a menu box will open with the choices; Disable Status Repair View available wireless networks Change windows firewall settings Open network Connections
choose view available wireless networksThen look for the comcast network and connect to that. If Comcast isn't available on the list, you may have to choose and look in your LAN or high speed internet category to see if its listed there. If it is, right clik on it and choose
You would not need a specific card for your laptop unless you wanted to upgrade to N technology. You would need a Internet Service Provider (ect. cable, verizon) and a router. I'd have Geek Squad setup your router to ensure it is properly setup and secure.
First turn off you laptop. Second, go to your comcast cable modem unplug it from the wall and wait about 3mins. Now plug the comcast modem back it and wait for all the lights to come back (will take about 2-3mins). Now plug the yellow ethernet cable into your laptop if its not already and turn your laptop on. You should now have internet.
Also if you using a Comcast Surf Board modem be mindful of the standby button on top of the modem. You can tell your in standby mode if the standby light (bottom light) is amber. If it is press the standby button once to get out of standby mode.
You will have to remove the cable from your wired card first, as your pc cannot open 2 networking ports and obtain an ip address.
The wireless card needs to be able to pick up the address and dns address from the router, so when your disconnected from wired card, your wireless should search for wireless connections and allow a conection.