How to Connect Two Computers or Laptops Wirelessly

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However, if you have a laptop or computer that has a wireless card and so does your buddy, you can use the cards to make a wireless connection between the two computers. Once they are connected wirelessly (also called a peer-to-peer ad-hoc wireless network), you can easily share data between the computers.
You can create an ad-hoc network in Windows or in OS X and the steps for creating the network for each OS. It’s important to note that ad-hoc networks in general have certain limitations that make them only useful for certain situations.
Firstly, the speed of an ad-hoc network is normally less than that of a normal infrastructure network. Ad-hoc network specs only require a max speed of 11Mbps, which is way slower than b/g/n/ac max speeds.
Secondly, you can’t monitor signal strength of ad-hoc networks, so you have to make sure the computers are fairly close to each other and don’t move around a lot. Lastly, ad-hoc networks don’t support all the security features of normal infrastructure networks, so they can be more easily hacked.Setting Up an ad hoc Network This is for Windows 7, but you can follow the same instructions
for Windows 8 and Windows Vista.
1. To get started, open the Control Panel and click on Network and Sharing Center
2. On the next dialog, click on the Setup a new connection or network link towards the bottom.
3. In the new connection dialog, scroll down till you see the Setup a wireless ad hoc (computer-    to-computer) network option.
4. On the next screen, it will explain what a ad hoc wireless network is and will let you know that if you’re currently connected to a wireless network, you’ll probably get disconnected. Go ahead and click Next.
5. Now you have to give the network a name, choose a security type and give it a security key. For the security key, you can choose from only three options: no authentication, WEP or WPA2-Personal.
The default is WPA2-Personal, which is the strongest. 
6. Click next and then you’ll get a screen showing you that the network has been setup. Note that if you don’t check the Save this network box, once you disconnect from the ad hoc network, it will simply disappear. If you want to use it again, you’ll have to start from scratch.
7. Congrats, you’ve completed the first part! Go ahead and open your list of wireless networks and you should see your newly created one listed along with the rest of the wireless networks. Click on it to connect.
8. Once you are connected, you’ll see a message next to the network name that says Waiting for users. You network is now ready to accept new connections.

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