cabbagehead
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WiFi uses the IEEE standard 802.11. On your WiFi devices this standard will be followed by a letter, either b, g, or n. These are different standards for speed and distance, but they are all compatible with each other. The connection speed will always be the highest supported by both devices: for example, if you have an 802.11n router and an 802.11g wireless card, you will only be able to transfer at g speeds.
The router will come with a label, instruction manual, or a quickstart card which will include the device's IP address. You can access the router's settings menu by typing this number into your browser's address bar. Here you will be able to change security settings.
Begin by changing the router's password. Since the default password is widely known, it's an easy way for hackers to gain access to your network. From then on you will need to know this password to change your router's settings.
If you want a secure connection you will need to set up a WPA or WEP password. WPA is more secure than WEP, but isn't supported by older devices.
You can also change the SSID. This is the name the router will show up as when you try to connect to it.
Now you are ready to connect computers and other devices to your router. Windows, OS X, and Linux all use a taskbar icon to access networks; the appearance will depend on what icon pack you are using, but it will probably resemble a series of waves or a pair of computers connected by a line. Click on this icon and you will see a list of available wireless networks. Select your router, and type in the WPA or WEP password when asked.
 Posted 5392 day ago
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