IMPROVING WIRELESS SPEED 



Wi-Fi connections can be great for convenience and flexibility but can suffer from dropped connections and slowdowns. In this section, we look briefly at what you  can do to improve the speed and reliability of your wireless connections. 



First, if your computer keeps dropping the connection and then having to  reestablish it, try turning Wi-Fi off and back on again. The easiest way to do this is  to click the Network icon in the notification area and then click the Wi-Fi button at  the bottom of the Network fly-out to turn off Wi-Fi temporarily. Repeat the move  to turn Wi-Fi back on. If the connection is still problematic, and it’s a network that  you administer, restart the wireless router.


Second, look at the connection’s status to see whether there’s anything obviously wrong. The Network icon in the notification area gives you a rough indication of  signal strength—the more white bars, the better—but to see the details, you need  to look in the Wi-Fi Status dialog box. 



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Follow these steps to open the Wi-Fi Status dialog box:

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1. Right-click or long-press the Network icon in the notification area to open the shortcut menu. 


2. Click Open Network and Sharing Center to open a Network and Sharing Center window.



3. In the Access Type section of the View Your Active Networks box, click the link for the Wi-Fi connection to display the Wi-Fi Status dialog box.




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These are the main things you can do from the Wi-Fi Status dialog box:


➡️ Check that the connection has Internet access. 

Look at the IPv4 Connectivity readout and the IPv6 Connectivity readout. Make sure that at  least one of these says Internet rather than No Internet Access. 


➡️ Check the connection speed. 

Look at the speed readout to see whether it’s reasonable. (See the nearby sidebar about wireless speeds.) If it’s not, you  may be able to get a higher speed by disconnecting from the network and  then connecting to it again. 


➡️ Check the signal quality. 

Look at the Signal Quality readout, which shows from one to five green bars—as usual, the more the merrier. 


➡️ View more details about the wireless connection. 

Click Details to display the Network Connection Details dialog box. This includes a wealth of detail,  of which the following items are usually most useful: the hardware (MAC)  address; whether the connection uses DHCP; the IP address and the subnet  mask; and the addresses of the default gateway, the DHCP server, and the  DNS server. 


➡️ Change the wireless network’s properties. 

If you need to control whether Windows connects automatically to this network, click Wireless Properties to display the Wireless Network Properties dialog box. On the Connection tab, you can check or clear the Connect Automatically When This Network Is in  Range check box, as needed.


➡️ Diagnose problems with the connection

If the connection isn’t working correctly, click Diagnose to launch the Windows Network Diagnostics Wizard.



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Third, you may need to change channels to get a decent connection. A wireless network can use any of a variety of channels, which the administrator can choose  using whatever configuration utility the wireless access point provides. If many of  the wireless networks in your immediate vicinity use the same channels, you may  get lower throughput. 


To see which network is using which channels, you can install a Wi-Fi analyzer app or Wi-Fi stumbler app such as InSSIDer or Kismet. Many are available with different  features, but most show you the available networks, their relative signal strength,  and the channels they are using. Armed with this information, you can set your  wireless network to avoid the channels your neighbors are using.



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