Reduce the number of devices operating on your wireless network. Shutting off all devices but the one you are currently using will help you differentiate between network issues and bandwidth issues.
Shut down all non-essential software on your computer. Various programs connect to the Internet for information or updates and can temporarily spike your network usage.
Anti-virus software, in particular, can tank a wireless connection when attempting to download new virus definitions.
Shut these services down using your taskbar, but remember to complete necessary updates later.
Disable the network auto-configuration feature. In Windows XP and Vista, lag spikes can be caused by the computer occasionally trying to find new wireless networks.
You can turn this feature off by pressing the Windows and “R” keys simultaneously to open a Run prompt, then typing “cmd” and hitting enter.
On the command prompt, enter “netsh WLAN set auto-config enabled=no interface=[Wireless Network Interface],” replacing the text in brackets with the name of your network card and hitting enter. This should clear up a significant amount of Vista and XP lag.
Move your computer and router into better positions. Ideally, the router will have a direct line of sight to the computer.
While wireless network signals can make it around corners and upstairs, the closer you are to the access point the less likely the connection is to be sapped by interference.
Run the Regedit tool. To do so, open the command prompt and type “REGEDIT.” Hit “Enter” to open the registry.
Browse to the following registry entry: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\Tcpip\Parameters\Interfaces
Locate the IP address of your network under the “Interfaces” entry. If you’re unsure of your network’s address, try a site like whatismyip.com or whatismyipaddress.com to find out.
Right-click the entry and select “New,” then “DWORD (32-bit). Name the new value “TCPNoDelay.”
Right-click the new entry and click “Modify.” Enter “1” and make sure the “Hexadecimal” button is selected.
Exit the registry editor and restart your computer to apply the changes. This should result in a significant improvement in gaming latency.
Tips & Warnings When Trying to Fix Wireless Lag Spikes
If you disable the auto-configuration feature, you can re-enable it by going back to the command prompt and entering “netsh wlan set autoconfig enabled=yes interface=[Wireless Network Interface].” Just change “enabled=no” to “enabled=yes.”
Steps to Reduce or Fix WiFi/Wireless Lag
Even on the best of the high-speed networks, due to poor WiFi, the internet may sometimes lag behind.
This lag occurs most of the time as a result of issues with remote servers and usually gets fixed on its own.
But if the problem persists over time, you might need to try to resolve it to the best of your ability. The following tips might help.
#1. The first and the most obvious fix of the lot: Upgrade your connection speeds
With an internet connection of say, 15-20 Mbps (Megabits per second) is considered to be appropriate for online gaming.
That’s because latency more impacts your lag than rpm. Nowadays, however, we have several devices connected concurrently to the same network.
Therefore, if the internet is used to do stuff like watching movies, streaming music, and other internet-heavy work at the same time, the bandwidth would naturally drop below a certain amount of viability, creating a great deal of latency when gaming.
Therefore we’d suggest a 20Mbps speed to be on the safer side. And there’s also this fact that you should be aware of, i.e., fiber broadband offers you a smoother online gaming experience than WiFi. So make your choice wisely.
#2. Get closer to your wireless router (in case you are playing on a wireless internet connection)
Even if your WiFi signal is powerful enough to prevent disconnections, if you’re too far away from the router it can still have a strong impact on your connection speed. The further removed you’re from the router, the slower it’ll be.
A standard 2.4 GHz router can transmit between 100 and 150 ft. But you also have to remember, at the same time, that computers positioned at the extremes of this range will slow down significantly over time.
How, then, just take the opportunity? For the best possible results get closer to your router.
#3. Test your internet speed to know whether you are experiencing bandwidth-hogging or not
Bandwidth hogging will seriously affect your online gaming speed for the worse.
It is therefore also advisable to test whether or not you are actually experiencing bandwidth-hogging as a cause of your lag to nip the issue ( to Fix Wireless Lag Spikes) in the bud itself.
A simple speed test can be of help here. Note: To get a decent average estimate of your upload and download speeds, it is best to do the speed test at least three times.
Upload speed for gaming isn’t considered as important as download speed. So instead concentrate on download speed.
If the download speed is below 10Mbps, this could pose a problem.
#4. Interference from other sources
WiFi routers work on radio waves. These signals can interfere with one another in the same way FM/AM radio signals do.
Some of the commonest interference sources are:
Direct satellite services,
External monitors and LCD displays,
Cordless telephones operating in the 2.4 GHz to 5GHz frequency range,
Other wireless routers.
Change the channel of your wireless network at the time of online gaming.
If possible, connect to a 5GHz wireless network.
Move your computer closer to the WiFi router.
Minimize the number of active Bluetooth devices connected to your computer.
#5. Improve your line connectivity
If your internet connection is not on a fibered network, you can do a number of things to improve your line connectivity, on the whole. A few of these are:
Use microfilters on the line that runs from the wall jacket to your phone and modem. This can significantly reduce unwanted noise on the phone line.
If you have a router that’s ancient in looks and functionality, consider replacing it ASAP.
To reduce interference from other sources like mobile chargers, microwave ovens, wireless speakers, etc., move your modem away from them ASAP.
Keep a careful tab on the ADSL light on your modem. If you see the light blinking from time to time, it can signify an unstable ADSL line configuration. This problem can be solved by your ISP. So make sure you call them ASAP.