How to Fix Wireless Lag in Vista and Windows 7 Read more at Suite101: How to Fix Wireless Lag in Vista and Windows 7: Stop Lag From Interrupting On

Vista and Windows 7 scans for wireless network every minute which can interrupt online gameplay and cause streaming videos to stop. But there are ways to fix the lag.

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In Windows Vista and Windows 7, the operating system scans the wireless spectrum every 45 seconds to look for a more preferred wireless access point (AP) than the current one. According to MSDN, the wireless driver must not perform any scans while data is being streamed. Unfortunately, these scans cause streaming data including online games, Youtube videos, and internet radio stations to be interrupted as frequently as every 45 seconds.

Even though wireless autoconfig for preferred AP causes problems for many users, Microsoft will not remove this feature from the default OS configuration. Unfortunately, disabling wireless autoconfig also stops all wireless connections immediately.

Some typical games that are negatively affected by wireless lag include World of Warcraft, Battleforge, and Team Fortress. Dying in an online game because of lag can be frustrating.
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Before proceeding, users on DSL may want to check to see if their wireless router is causing the lag.
Testing Wireless Lag With Ping

To see if wireless lag is a problem, bring up the command prompt and type "ping -t www.google.com". Look at the number for "time=". After every 30 seconds to 2 minutes, one or more of the packets will be much higher than the rest, often above 1000ms.

If other symptoms show up such as dropped packets, the problem is something else such as a problem with the wireless router or internet service provider. Lag can be caused by other network issues such as ISP issues and poor wireless signal quality.
Disabling Vista's Wireless Autoconfiguration

To disable this feature, a replacement wireless client is needed that can connect the computer's wireless adapter to other wireless networks. Normally, the client is downloaded from the support website for the wireless card or computer manufacturer. In notebook computers, the wireless drivers are usually downloaded from the notebook manufacturer's support website. In some cases, a utility may not exist or may run on top of Vista's wireless autoconfig, which means disabling Vista's Wireless Autoconfig means disabling wireless internet. In those cases, the user needs to buy an extra USB wireless adapter that can bypass Vista autoconfiguration.


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If a replacement wireless client has been found, click on the Windows icon on the lower left of the screen, the right click on Computer and select Manage. Go into the Services menu and disable "WLAN Autoconfig" service. Keep in mind that disabling the service will disconnect all wireless connections immediately. To restore wireless service, enable the auto-start then start the service manually.

Once Vista's WLAN Autoconfig service has been disabled, use the replacement wireless client to connect to wireless networks instead of using Vista or Windows 7.
WLAN Optimizer and Vista Anti-Lag (VAL)

WLAN Optimizer, written by Martin Majowski, fixes this problem in one small program that's designed to work in Vista and Windows 7 by changing the configuration of Vista's wireless service. This is a freeware program that disables the automatic scans for wireless networks. It can be configured to start automatically along with Windows once the user determines that it fixes the wireless lag. An additional feature of WLAN Optimizer is that it can be configured to turn on streaming mode, which could also stop the lag in streaming data such as Youtube videos. If the program stops running, all settings revert back to the OS defaults so there are no permanent changes if WLAN Optimizer doesn't work. Another program that may work is Vista Anti-Lag (VAL).

For some, both WLAN Optimizer and Vista Anti-Lag do not work. For these users, they need to find a replacement wireless client or perhaps try another wireless adapter which comes with a Vista utility.

Finally, some users have seen success from disabling Windows Defender or the Base Filtering Engine from the Services menu in Control Panel. Keep in mind that both of them reduce system security significantly.

Although the wireless lag seen in many Vista and Windows 7 wireless connections is very annoying, it's something that can usually be fixed by working around Vista's and Windows 7's wireless auto configuration.


Read more at Suite101: How to Fix Wireless Lag in Vista and Windows 7: Stop Lag From Interrupting Online Games and Pausing Videos http://www.suite101.com/content/how-to-fix-wireless-lag-in-vista-and-windows-7-a161817#ixzz0zjrnLIg8




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