No Killer Network Interfaces Connected


A few things can cause the Killer Control Center to report error. Following are the most common, and how to correct the issue:

  • You have recently updated to Killer Control Center version 1.5.1618. Using this guide - - to completely uninstall and reinstall the Killer Control Center and the drivers for your Killer network adapter should solve the issue. 
  • You are not connected to the Internet. Connecting to the Internet with your Killer network adapter should clear this error. 
  • You recently installed or updated the Killer Control Center and have not rebooted your computer. Rebooting should resolve the issue. Please note that, to restart, you should click Start > Power > Restart, as simply closing the lid, or pressing the power button on many modern computers activates sleep mode, and does not actually power down the machine. 
  • You are connecting to the Internet using a network adapter other than a Killer product. Our performance suites only work when connecting to the Internet with our products. Be sure that you are connecting to the Internet using the Killer network adapter. 
  • You are using an incorrect device driver. Updating to the latest suite should resolve that issue. You can find the latest Killer Control Center here - If you have manually installed a device driver that was not provided by Killer Networking, you may need to manually uninstall that driver first, deleting it from your driver cache, before you install the latest suite. 

Please reach out to support, using the link below, if you are unable to solve the issue using the above information. 

Service Not Running


Error: Service Not Running

You may experience a situation where their Killer Control Center says "Service Not Running" instead of operating normally. 

service not running


This issue should be resolved with the current build of the Killer Control Center. You can download the latest build of the Killer Control Center from here - In most cases, you can simply download and install the update, and you will have the latest application and drivers. If you encounter an error, such as "Cannot be installed with..." or some other error, try removing all "Killer Suite" and "Killer Drivers" applications, as well as any variations, from your Apps and Features menu, then restart your machine, and try installing the update again. If you are still unable to install the update, refer to our troubleshooting article for issues installing the Killer Control Center here - You can also reach out to us directly here -  

If updating the suite does not solve the issue, then you will need to investigate why the service is not starting automatically. If the service does not start automatically when the machine starts, then there is likely another service that is preventing it from starting, or the service is not set to start automatically

You can check to make sure that the service is set to run automatically by following these steps:

  1. Click Start, type services.msc and press Enter.
  2. Scroll until you find the Killer Network Service and double-click it.
  3. Make sure the "Startup Type" is set to Automatic. You can also manually start it from here by clicking Start button, which will clear the error until you next restart your machine.

Antivirus suites can also cause issues with services. Try completely uninstalling your antivirus suite and restarting to see if that solves the issue. If the service starts without the antivirus suite installed, reinstall the suite using a freshly downloaded copy from the suite's website. The service may still start automatically after you have reinstalled the antivirus application. If it does not, please contact us at to let us know which antivirus suite is blocking our service from starting, and also contact your antivirus application's support to find out how to add our service to the list or exclusions. 

If our service still does not start, and you still receive the "Service Not Running" error with no antivirus installed, and while using the latest Killer Control Center, please reach out to us at so that we may assist you further.

Fall Creator's Update Breaks Network Adapter


Some users have experienced issues with their network adapters directly after the Windows 10 Fall Creator's Update. The errors vary, but most point to a hardware failure of some kind. We have received reports of "Network Cable Unplugged" and "Device Cannot Start," even though the adapters were working normally before the update. Unfortunately, in some cases, the only solution seems to be to uninstall and reinstall the Windows 10 Fall Creator's Update. However, one thing you can try is uninstalling all drivers for the device from the Windows driver store, then restarting the machine, and installing the latest drivers. Here are the steps: 

  1. Make sure you have the latest Killer Control Center installer handy on the machine (you may need to use a USB thumb drive or some other medium if you can't access the Internet with the machine). 
  2. Right-click Start, click Apps and Features, find all entries with "Killer" in the title, and uninstall them. This includes "Killer Drivers" or "Killer Suite" or any variations. You can hold off on restarting for now if an uninstaller says to do so.
    1. If you encounter any issues with uninstalling, such as the uninstaller hanging (give it at least ten minutes), or giving an error message, cancel the uninstallation, then right-click the taskbar and click Task Manager.
    2. Make sure the Processes tab is selected.
    3. Click Name at the top of the "Name" column to sort by name.
    4. Scroll down and find any "Killer" process under "Apps" and "Background Processes", click it, and click the End Task button.
    5. Click the Services tab. 
    6. Click Name to sort by name.
    7. Scroll down and find the "Killer Network Service". Right-click it and click Stop. 
    8. Close the Task Manager window and return to the Apps and Features menu, and continue uninstalling all "Killer Drivers" or "Killer Suite" entries.
  3. Close Apps and Features and right-click Start and click Device Manager
  4. Find the Ethernet adapter under the Network Adapters heading, right click it, and click Uninstall Device. If you cannot find it, you may need to click View > Show hidden devices at the top of Device Manager. It may also be listed somewhere other than under Network Adapters.
  5. Check the box for Delete the driver software for this device if it is present.
  6. Click Uninstall.
  7. Click the light blue Scan for hardware changes icon at the top of Device Manager. The adapter will probably reappear, and may or may not still show a Code 10, but I would suggest continuing with this guide either way.
  8. Repeat steps 4-7 until you no longer have the option to Delete the driver software for this device. Note that you could keep doing this indefinitely, as Windows will always install a default driver, but once you can no longer Delete the driver software for this device, you have accomplished the goal of clearing out all of the drivers that we were trying to clear out, and so you're done by that point.
  9. Restart the computer by clicking Start > Power > Restart. Do not rely on the machine's power button as many modern computers have that button set to sleep, not power off. 
  10. Once the machine has restarted, run the installer for the latest Killer Control Center. If everything doesn't look perfect, restart the machine after the installation, even if the installer did not say to do so. 

If that doesn't solve the issue, you can try uninstalling the Fall Creator's Update. Here are the steps to do that:

  1. Click ​Start
  2. Type ​Windows Update ​and click ​Windows Update Settings.
  3. Click ​Recovery​ on the left. 
  4. Under "Go back to the previous version of Windows 10" click ​the ​Get Started​ button, and follow the prompts from there to revert to the previous version of Windows 10.

Once you have reverted to the previous version of Windows 10, make sure you hae updated to the latest version of your network adapter drivers. You can download the latest Killer Control Center, with the latest drivers, from here -

Windows will invariably reinstall the update at some point. You can either wait for it to update on its own, or you can search Windows Update, then click Check for Updates, and it will likely download and install the Fall Creator's Update again, hopefully without the same issue, as you will now have the latest drivers for your network adapter. 

Bandwidth Test Error in Killer Control Center


Bandwidth Test Error in Killer Control Center

Users may notice that the built-in bandwidth test no longer functions in some versions of the Killer Control Center. This is due to changes in the way that the Killer Control Center connected to the servers that are needed to perform these tests. The current version of the Killer Control Center should not experience this issue. To resolve this issue, please update your version of the Killer Control Center by downloading the latest package from here - If the version on your system is old enough, the installer may give you an error, and you will need to manually uninstall the previous version before installing the latest package. 

Problems With The Killer Network Manager


The Killer Network Manager is our outgoing performance suite. It is no longer being updated, and does not contain the latest Ethernet or Wi-Fi drivers. We encourage all users of the Killer Wireless-AC 1525/1535/1435, Killer Wireless-N 1202/1103, Killer E2200, Killer E2400, and Killer E2500 to upgrade to the Killer Control Center, found here - This includes users whose machines came with the Killer Network Manager preinstalled. There is no need to continue using the Killer Network Manager.

For a smooth installation, download the latest Killer Control Center installation package, then uninstall all Killer products from your Apps and Features menu, which is accessible by right-clicking Start, then restart your computer, and double-click the new installation package to install the new Killer Control Center.

The old Killer Network Manager suite is still available for download here - - but will no longer be updated, and may not be fully compatible with future Windows updates, antivirus suites, or other applications that manipulate network data.

Error 2753: The File 'xtendsoftapservice.exe' is Not Marked for Installation


The File 'xtendsoftapservice.exe' is Not Marked for Installation (Error 2753)

This guide also fixes the error "The feature you are trying to use is on a network resource that is unavailable..."

Some users may encounter this, or a similar error, when updating their drivers or Killer Control Center, or when uninstalling the Killer Control Center.

Even if you are in the process of updating the Killer Control Center, the issue is that the installer is unable to find this file in order to uninstall it, which is a necssary step for installing the latest suite.

The problem is that the file is either not present, or is not correctly flagged in the registry. This is a bug that was introduced in a few versions of the suite when it was present on your machine during a major Windows feature update, or an upgrade to Windows 10 from another version.

Note that this guide can also be used to uninstall some older versions of the application, which have become bugged due to Windows Feature Updates, and may or may not appear in the Apps and Features menu. The process is exactly the same. 

This issue can be resolved by following these steps:

  1. Download the latest Killer Control Center and keep it somewhere handy, to install when you're finished uninstalling the old suite -
  2. Download Microsoft's tool for fixing problems that block programs from being installed or removed - 

    microsoft uninstall fixit2

  3. Once you have both of those things downloaded, uninstall all Killer products from your Apps and Features menu, which you can access by right-clicking Start.

    right click start uninstall killer

  4. You may encounter that same error - Error 2753. The File 'xtendsoftapservice.exe' is Not Marked for Installation - and that is fine. When you do, skip that application, and uninstall any other applications from "Killer" including "Killer Drivers."

  5. Now run the tool from Microsoft. 

  6. For the first menu, you will simply click Next

    ms uninstall fixit 1

  7. Then after a moment of "Detecting Problems", it will ask if you are having a problem installing or uninstalling a program. Even if you are trying to update or install the Killer Control Center, the actual problem is happening when the installer attempts to uninstall the old suite, so you will choose Uninstalling

    ms uninstall fixit 2

  8. At the next prompt, the program will ask you to choose from a list of programs. Find the Killer-related program in the list. It may not be the same as the one in this screenshot, but choose whichever Killer suite the program finds, and then click the Next button. 

    ms uninstall fixit 3

  9. The tool will then proceed to erase the parts of the Killer suite that the installer was unable to remove from the registry. If the program is not listed, you have the option of choosing "Not Listed", and the tool may still find the pieces in the registry that need to be removed. However, it is hard to duplicate that particular scenario, so providing a screenshot is not possible, but it is fairly self-explanatory. 
  10. Once the tool has finished doing its work, you will want to restart your machine once more, and then install the latest Killer Control Center, which you downloaded previously.
  11. If you have any further questions, feel free to contact support at the link below! 

The Feature You Are Trying To Use Is On A Network Resource...


When updating the Killer Control Center, you may encounter the error "The feature you are trying to use is on a network resource that is unavailable..." 

the feature you are trying to use

This issue can be resolved by using Microsoft's tool for fixing problems that block programs from being installed or removed. Although it may seem like the issue is happening when you are installing the Killer Control Center, the problem is actually happening when the installer is attempting to remove pieces of older installs, so you will need to choose Uninstalling when prompted. A detailed guide for using this tool is availabie here - Although the article does not talk about this issue specifically, the guide and fix is exactly the same. 

Have a question about your Killer product that isn't answered in our Knowledge Base?  Contact Us.