Call of Duty: Modern Warfare has been out for a while now, but there’re still many gamers complaining about the lag or latency issue. So if you happen to be one of them, you’ve come to the right place. Here’re some fixes that can help you resolve or mitigate the lag.

How to check if the lag is network related

First things first, there’re basically 2 types of lag: one is low FPS and another is high latency. The former means the game is challenging to your graphics card or CPU, and the latter indicates there’s a network issue on either your side or the server side. In simpler terms, low FPS makes your game look like a slideshow, and high latency puts you in a “shoot first die first” situation. This post seeks to resolve your high latency lag issue.

Try these fixes:

  1. Reboot your network
  2. Use a wired connection
  3. Disable WLAN AutoConfig Service
  4. Update your network driver
  5. Change your DNS server
  6. Close bandwidth hogging programs
  7. Disable crossplay
  8. Check if it’s a server issue

Fix 1: Reboot your network

When it comes to network troubleshooting, sometimes the easiest and quickest solution is to reboot your network equipment. This is useful especially when your router or modem is overloaded or overheated.

Here’s how to do it:

  1. Unplug the power cords of both your modem and router.
    modem

    wireless router
  2. Wait 2 minutes and plug the cords back in. Make sure the indicator lights of both devices are back to their normal state.
  3. Open your computer and browse a website to verify your Internet connection.
  4. Once you’re back online, open Modern Warfare and test the gameplay.

If Modern Warfare still lags after you reboot your network, check if you’re using WiFi for your game. If so, check out the next fix. Otherwise jump to the fourth fix.

Fix 2: Use a wired connection

Wireless connection is good for web browsing, but not stable enough for online gaming. WiFi channel conflict and bad reception are two common causes of lag spikes. So to avoid possible interference, we always recommend playing games on a wired network.

Don’t forget to check your cables as well. Lagging can result from substandard or broken cables. And while you’re checking, make sure the cables are securely plugged in.

However, if gaming on WiFi is the only option you have, you can still try the next method to improve the wireless stability.

Fix 3: Disable WLAN AutoConfig Service

Windows includes a service named WLAN AutoConfig, which configures your computer to scan and connect to wireless spots. But there’re complains saying this service triggers the latency spikes, and many users have reported that disabling this service improves ping stability.

If gaming via WiFi is your only choice, you can try disabling this service to fix your lag issue.

Here’s how to do it:

  1. On your keyboard, press the Windows logo key and R at the same time to invoke the Run dialog. Type services.msc and Click OK. This will open the Services window.
  2. On the Service window, scroll down until you see WLAN AutoConfig. Right-click on WLAN AutoConfig and select Stop.
Stopping the WLAN AutoConfig service will render your computer unable to scan other Wireless hotspots. If disabling it doesn’t fix the lag or you need to connect to another hotspot, be sure to have this service started.

Once you’ve completed these steps, open Modern Warfare and see if the lag has gone away.

If the problem remains, you can take a look at the next fix.

Fix 4: Update your network driver

Another possible cause of your lag problem is that you’re using a faulty or outdated network driver. If you don’t remember when’s the last time you updated your network driver, you should do it now.

It’s usually a tried and true method, especially when you spent top dollar on your gaming rig, which might have some killing features that need to be unlocked by an additional driver.

There’re 2 ways you can update your network driver: manually or automatically.

Option 1: Update your network driver manually

You can update your network driver manually by visiting your motherboard manufacturer’s website, and search your motherboard model. Usually you can find drivers under the Support section, and network drivers have names similar to Intel Lan Driver or Realtek LAN Driver.

Option 2: Update your network driver automatically (Recommended)

If you’re not comfortable playing with device drivers, we recommend using Driver Easy. It’s a tool that detects, downloads and installs any driver updates your computer needs.

  1. Download and install Driver Easy.
  2. Launch Driver Easy, then click Scan Now. Driver Easy will then scan your computer and detect any problem drivers.
  3. Click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system.(This requires the Pro version – you’ll be prompted to upgrade when you click Update All. If you don’t want to pay for the Pro version, you can still download and install all the drivers you need with the free version; you just have to download them one at a time, and manually install them, the normal Windows way.) 

    You can do it for free if you like, but it’s partly manual.
The Pro version of Driver Easy comes with full technical support. If you need assistance, please contact Driver Easy’s support team at support@drivereasy.com.

Once you’ve updated your network driver, restart your computer and launch Modern Warfare. Test your gameplay and see if the lag is still there.

If you’re still feeling delay in the game, you can try the next fix below.

Fix 5: Change your DNS server

In layman’s terms, the Domain Name System (DNS) is basically the phonebook of the Internet: every time you visit a website, your DNS server translates the web address into an IP address, which is often long and hard to remember.

Why change your DNS server

Normally we’re using a DNS server provided by our ISP, one whose quality is unknown. In most cases, changing to a popular and reliable DNS server offers a faster and safer connection. Also, Modern Warfare has a great number of game servers, and a reliable DNS server connects you to the one that is geographically closest to you.

How to change your DNS server

You can follow these steps to change your DNS server:

  1. On your keyboard, press the Windows logo key and R at the same time to invoke the Run dialog. Type control ncpa.cpl and click OK to open the Network Connections window.
  2. Right-click your Ethernet adapter and select Properties.
  3. Double-click Internet Protocol Version 4(TCP/IPv4).
  4. In the pop-up window, select Use the following DNS server addresses:. For Preferred DNS server, type 8.8.8.8; and for Alternate DNS server, type 8.8.4.4. Click OK to save the changes.
    8.8.8.8 and 8.8.4.4 are the most popular DNS servers developed by Google.
  5. Next you need to flush the DNS cache. On your keyboard, press the Windows logo key and type cmd. Select Run as administrator.
  6. In Command Prompt, type in ipconfig /flushdns and hit Enter.

You’ve now changed your DNS server. So the next thing is to try it out with Modern Warfare and see if it fixes the lag issue.

If this method doesn’t give you any luck, you can move on to the next one below.

Fix 6: Close bandwidth hogging programs

You might experience lag when there’s a bandwidth-hungry software running in the background. So before you can enjoy a smooth gaming, you need to make sure you’ve closed or disabled programs like OneDrive, Skype or Windows Update that use a great amount of bandwidth to function.

Here’s how you can check:

  1. On your keyboard, press Ctrl, Shift and Esc at the same time to open Task Manager. Click the Network tab to sort tasks by traffic consumption.
  2. On at a time, select processes that consume the most traffic, click End task to close them.

After cleaning up the bandwidth hogging programs, you can launch Modern Warfare and check if it improves your experience.

If this trick doesn’t do the job for you, have a look at the next method.

Fix 7: Disable crossplay

Modern Warfare includes a feature named “crossplay“, which allows you to compete with players from other platforms. It sounds fancy, but some PC gamers have reported that disabling crossplay fixed their lag issue. So let’s hope this works for you too.

Here’s how to disable crossplay in Modern Warfare:

  1. Open Modern Warfare and go to Main Menu.
  2. Open up Options and navigate to the Account tab. Under the Online section, set Crossplay to Disabled.
  3. Join a game and check if your lag has disappeared.

If disabling crossplay doesn’t fix your lag problem, turn it back on and take a look at the final fix.

Fix 8: Check if it’s a server issue

Modern Warfare is a great game, but the lag is unbearable. It makes you wonder if there’s a problem from your end. But sometimes you’re not the only one experiencing the lag. So when you’ve tried everything above and nothing works, maybe you’d want to check if it’s a server issue, by visiting the Activision Support Twitter and the Modern Warfare Reddit.

So these are the tips that can help you resolve or mitigate the lag in Modern Warfare. If you have any questions or suggestions, please feel free to leave a comment.

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