Wireless lags can be problematic in various situations. Examples where you may experience issues caused by these lags are video streams to your computer, when you are watching live feeds, or when you are playing multiplayer computer games on the Internet.
Depending on the severity of those lags, you may experience small freezes or slow downs but also severe connection issues or even drops.That's a big issue and annoyance for many users who experience these types of lags.
This may be caused by a service in Windows that is regularly looking for new wireless networks. The service is called Wireless Zero Configuration in Windows XP, WLAN Auto Config in Windows Vista, and WLAN AutoConfig in Windows 7, Windows 8 and Windows 10.
The easiest way to check if the problem exists on a computer system is to ping a service for some time to see if the output displays lags which you can identify if spikes occur regularly. You need to be connected to the wireless network obviously to verify if the service is responsible for these mini lags.
To do that open a Windows command prompt with the shortcut [Windows R] [cmd] [enter] and type in the command ping -t www.google.com. This will ping Google and display the time it takes. If you see spikes like in the screenshot below you are experiencing wireless lag.
You need to check the time and look for spikes there. If you see spikes in regular intervals, the service may be causing these issues.
The easiest way to fix wireless lags is by downloading and running Wireless Zero Shutdown when running Windows XP, or Vista Anti Lag when running Windows Vista. For a solution for newer versions of Windows, check out the update at the end of the article.
Running either of the software programs will stop the Windows service from scanning for new wireless networks regularly as soon as a wireless connection has been established.
Update: Vista Anti-Lag is no longer available on the official developer website. We have uploaded the latest working version to our own server from where you can download it. Note that we don't support it in any way: vista-anti-lag_20547.zip
If you are running a newer version of Windows -- Windows 7, 8 or 10 -- , you may want to try disabling wireless polling using the command line.
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