Killer Control Center

Killer Control Center High CPU Usage 

 

Killer Control Center High CPU Usage 

Some users have experienced high CPU usage by the Killer Control Center, often with the inability to update or effectively uninstall the Killer Control Center. This usually happens due to older versions of the software running on the latest version of Windows 10. 

First, if your machine is running very slowly due to the high CPU usage, you will want to disable the service. To do this:

  1. Click Start
  2. Type services.msc and press Enter
  3. Scroll until you find "Killer Network Service" or "Rivet Bandwidth Control." Once you find it, double click it.
  4. Click Stop. It may take a few moments for the service to stop. 
  5. Click OK and close the Services window. 

Your machine should now be more reactive while you uninstall the old version of the suite, and reinstall the latest.

  1. If you are using Windows 10 and don't already know which build, find out which build of Windows that your machine is currently running. If your computer has completed the Windows 10 Spring 2018 update, you are running version 1803. Otherwise, or if you don't know, continue reading.
    1. Click Start
    2. Type winver and press Enter
    3. A box will appear with some information about Windows. There will be a 'Version" number. It will probably be either 1709 or 1803. 
  2. Download the correct installer for your version of Windows.
    1. Windows 7, Windows 8.1, and Windows 10 Version 1709 and below, as well as those using Wireless-N adapters, should download this installer - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
    2. Windows 10 Version 1803 and above should download this installer - https://www.killernetworking.com/driver-downloads/item/kcc-uwd
  3. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe
  4. Run the Killer Software Uninstaller Tool. It is not necessary to scan, and the scan may not find anything. Regardless, click Remove Killer Software, and give it some time to run. When it is finished, it will say "RESTART REQUIRED."
  5. Restart your machine by clicking Start > Power > Restart
  6. Once your machine has booted back up, access  your temporary files folder and delete the contents
    1. Click Start
    2. Type %temp% and press Enter. Your temp folder should open.
    3. Delete all files in the temp folder. These are all temporary install files, and are safe to delete. If you receive a prompt saying that a file cannot be deleted, you can safely select Skip All
    4. Close the temp folder
  7. Run the installer that you downloaded for the Killer Control Center. Follow the prompts to complete the installation. 
  8. Restart your machine if the installer requested a restart.
  9. Test to see if the issue is resolved.

Killer Control Center Does Not Automatically Start

2.7 

Killer Control Center Does Not Automatically Start

We have made the decision to not have the Killer Control Center start with Windows when we made the move into the Windows Store. This is due to the wishes of some of our hardware partners. However, you can restore that functionality by following these steps: 

  1. ​​Right-click Start
  2. Click ​Run
  3. ​Type ​shell:startup​ and press Enter
  4. Move the Startup window to the right side of your screen
  5. Click Start
  6. Locate the Killer Control Center
  7. Click and drag the Killer Control Center icon over to the Startup window
  8. Right-click the Killer Control Center shortcut that you have created in the Startup window and click ​Properties
  9. Click the drop-down box beside "Run" and change it to ​Minimized​
  10. Click Apply
  11. Click OK
  12. Close the Startup window

The Killer Control Center will now run at startup, minimized. If you prefer it not be minimized, you can leave "Run" set to Normal Window. You can use this same procedure to set any application to run at startup.

Prompts to Update Killer Control Center

 

Prompt to Update Killer Control Center

Users may see a prompt to update the Killer Control Center. This prompt is caused by a Windows Update that was not instigated by us but, nevertheless, targeted systems that came with the Killer Control Center preinstalled. Unfortunately, if you are here, you have probably already noticed that this prompt does not include any instructions on exactly how to update the Killer Control Center. 

The best way to eliminate this prompt is to manually update the Killer Control Center from our website. Here are the steps:

  1. If you are using Windows 10 and don't already know which build, find out which build of Windows that your machine is currently running. If your computer has completed the Windows 10 Spring 2018 update, you are running version 1803. Otherwise, or if you don't know, continue reading.
    1. Click Start
    2. Type winver and press Enter
    3. A box will appear with some information about Windows. There will be a 'Version" number. It will probably be either 1709 or 1803. 
  2. Download the correct installer for your version of Windows.
    1. Windows 7, Windows 8.1, and Windows 10 Version 1709 and below should download this installer - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
    2. Windows 10 Version 1803 and above should download this installer - https://www.killernetworking.com/driver-downloads/item/kcc-uwd
  3. Download the Killer Software Uninstaller Tool - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe
  4. Run the Killer Software Uninstaller Tool. It is not necessary to scan, and the scan may not find anything. Regardless, click Remove Killer Software, and give it some time to run. When it is finished, it will say "RESTART REQUIRED."
  5. Restart your machine by clicking Start > Power > Restart
  6. Once your machine has booted back up, run the installer that you downloaded for the Killer Control Center. Follow the prompts to complete the installation.

You should now have the latest Killer Control Center and device drivers installed, and should no longer see the update prompt. 

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 are connecting to the Internet using a network adapter other than a Killer product. Some machines ship with network adapters from multiple vendors. For example, your machine may have a Killer Ethernet adapter, but the wireless adapter may be from a different manufacturer, such as Intel. The Killer Control Center will not work with another brand's networking adapter. Be sure that you are connecting to the Internet using the Killer network adapter. Our performance suites only work connected to the Internet with our products. If your Ethernet adapter is a Killer Networking adapter, and your wireless adapter is not, then you will need to use an Ethernet cable to use the Killer Control Center. You can check to see which adapters you have installed by right-clicking Start, then clicking Device Manager, then double-clicking Network Adapters. If the only Killer Network adapter is listed as an Ethernet adapter, then you will need to use an Ethernet cable to use the Killer Control Center.
  • You are using an older version of the Killer Control Center. Some recent versions of the Killer Control Center experienced issues identifying some adapters. This has been resolved in current versions of the suite. Updating to the latest suite should resolve the issue. Even if you have a new machine, the version of the software that was installed on it when it was boxed may now be out of date. You can find the latest Killer Control Center here - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64.
  • You are not connected to the Internet. You will receive this error if you are not connected to the Internet using a Killer Networking adapter. Note that if you are connected to the Internet using a virtual adapter of any kind, even if that virtual adapter is attached to a Killer Networking adapter, the Killer Control Center will show this message as it cannot work with a virtual adapter. 
  • 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 using a virtual network adapter. The Killer Control Center can only work if you are connecting to the Internet using a Killer Networking Adapter. If you are connecting to the Internet using a virtual adapter, the Killer Control Center will not work, and will show this message instead. 

If you are seeing this message and none of the above applies, please try clean installing the Killer Control Center. You can find instructions for that here - https://www.killernetworking.com/driver-downloads/kb/faq/105-clean-install-the-killer-control-center

A Generic Error Occurred in GDI+ / Unhandled Exception

 

A Generic Error Occurred in GDI+ / Unhandled Exception

Some users may encounter an error when they attempt to open the Killer Control Center which reads, "A generic error occurred in GDI+" or "Unhandled Exception Error," at which point the Killer Control Center will either crash, or not load. 

This issue can be resolved by updating to the latest Killer Control Center. If you are already using the latest Killer Control Center, this issue can be resolved by reinstalling the suite. The procedure is the same. Here are the steps:

  1. Make sure you have a copy of the latest installer handy - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
  2. Right-click Start, click Apps and Features, and then find every "Killer" application listed, click, and click Uninstall. This includes any and all "Killer Performance Driver Suite" and any variation. Make sure you are also uninstalling the Killer Network Manager, as the Killer Network Manager is not meant to be run with the Killer Control Center. The Killer Control Center replaces the Killer Network Manager.
  3. Restart your machine by clicking Start > Power > Restart
  4. Once your machine has booted back up, access the temp directory by clicking Start and typing %temp% and pressing Enter.
  5. Delete the contents of this folder. These are temporary files that are meant to be deleted from time to time - you cannot harm anything by deleting all of these files. You may not be able to delete some of these files. It is okay to "Skip All" for these files.
  6. Using the File Manager, delete the folder that contained the Killer Control Center. By default, this folder is C:\Program Files\Killer Networking. You can delete the entire folder Killer Networking. If you cannot find this folder, you may have chosen a different install location, or you may be using software that automatically cleans any leftover files.
  7. Double-click the installer for the latest Killer Control Center. and follow the prompts to complete install.
  8. Restart your machine.
  9. Test to see if the issue is resolved.

Killer Control Center Does Not Save Speeds / Asks Every Reboot

 

Killer Control Center Does Not Save Speeds / Asks Every Reboot

Some users may encounter a situation where the Killer Control Center does not save the speeds that are input in Speed Limits in the Settings menu, resulting in a pop-up at every restart, asking the user to set speeds. 

This issue can be resolved by updating to the latest Killer Control Center. If you are already using the latest Killer Control Center, this issue can be resolved by reinstalling the suite. The procedure is the same. Here are the steps:

  1. Make sure you have a copy of the latest installer handy - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
  2. Right-click Start, click Apps and Features, and then find every "Killer" application listed, click, and click Uninstall. This includes any and all "Killer Performance Driver Suite" and any variation. Make sure you are also uninstalling the Killer Network Manager, as the Killer Network Manager is not meant to be run with the Killer Control Center. The Killer Control Center replaces the Killer Network Manager.
  3. Restart your machine by clicking Start > Power > Restart
  4. Once your machine has booted back up, access the temp directory by clicking Start and typing %temp% and pressing Enter.
  5. Delete the contents of this folder. These are temporary files that are meant to be deleted from time to time - you cannot harm anything by deleting all of these files. You may not be able to delete some of these files. It is okay to "Skip All" for these files.
  6. Using the File Manager, delete the folder that contained the Killer Control Center. By default, this folder is C:\Program Files\Killer Networking. You can delete the entire folder Killer Networking. If you cannot find this folder, you may have chosen a different install location, or you may be using software that automatically cleans any leftover files.
  7. Double-click the installer for the latest Killer Control Center. and follow the prompts to complete install.
  8. Restart your machine.
  9. Test to see if the issue is resolved.

Killer Control Center Errors After Update

 

Killer Control Center Errors After Update

Some users may experience errors with the Killer Control Center after updating to the latest version. This usually occurs when updating without uninstalling the old version first. While this is normally not a problem, we have noted that some users are encountering problems where:

  • The Killer Control Center will not open
  • The Killer Control Center causes GDI Exception Errors
  • The Killer Control Center causes a "NavBar" error.
  • Some specific websites are not accessible, while most websites are accessible. 

The solution to these issues is to perform a clean install of the latest Killer Control Center by following these steps:

  1. Make sure you have a copy of the latest installer handy - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64
  2. If you are encountering the issue where some websites are not accessible while most websites are accessible, download the Killer Remover - https://www.killernetworking.com/support/KillerRemover_v1.0.0.1.exe
  3. Right-click Start, click Apps and Features, and then find every "Killer" application listed, click, and click Uninstall. This includes any and all "Killer Performance Driver Suite" and any variation. Make sure you are also uninstalling the Killer Network Manager, as the Killer Network Manager is not meant to be run with the Killer Control Center. The Killer Control Center replaces the Killer Network Manager.
  4. Restart your machine by clicking Start > Power > Restart
  5. If you downloaded the Killer Remover in Step 2, run it now. It will have you restart again once it is finished running.
  6. Once your machine has booted back up, access the temp directory by clicking Start and typing %temp% and pressing Enter.
  7. Delete the contents of this folder. These are temporary files that are meant to be deleted from time to time - you cannot harm anything by deleting all of these files. You may not be able to delete some of these files. It is okay to "Skip All" for these files.
  8. Double-click the installer for the latest Killer Control Center. and follow the prompts to complete install.
  9. Test to see if the issue is resolved.

If you continue to experiencing issues, please contact us at killersupport@rivetnetworks.com

Internet Problems With New Computers

5.0 

Internet Problems With New Computers

This article only applies to brand new computers using Windows 10.

Some users may experience issues with brand new computers with Killer Network adapters and the Killer Control Center or Killer Network Manager preinstalled. 

These issues are often caused by Windows automatically updating to the latest version of the operating system without giving the user the chance to update any preinstalled software or device drivers. This results in software, which was likely up to date at the time the machine was boxed by the manufacturer, running on a version of the operating system on which it was never tested, and may not be able to operate on correctly.

If the user notices that, after Windows has updated, their Internet performance is severely degraded, or they see bluescreen errors that are attributed to our software or drivers, they should uninstall the Killer Control Center or Killer Network Manager, make sure Windows is fully updated, and then install the latest version of the Killer Control Center

Here is the step-by-step:

  1. Right-click Start
  2. Click Apps and Features
  3. Find "Killer Performance Driver Suite" or any variation or variations, and uninstall it or them, restarting when required. 
  4. If a restart was not requested, restart your machine now by clicking Start > Power > Restart. Avoid using the power button on your computer, as it is likely mapped to sleep the machine, which will not work for this purpose.
  5. Windows 10 will install a basic set of drivers. This does not include any of the latency reducing and bandwidth prioritizing features of your Killer networking adapter, but it will serve to let you update everything. The only exceptions are the Killer Wireless-AC 1535 and the Killer Wireless-AC 1550.
    1. There may not be a built-in driver in Windows 10 for the 1535 if the machine is still on the original release build of Windows 10 when the user uninstalls the Killer Control Center. This is unlikely, as you will likely not have access to uninstall anything before Windows has updated itself well beyond this point. 
    2. The Killer Wireless-AC 1550 was released in 2018 and, as such, no version of Windows 10 previous to this time will have built-in drivers. 
  6. Make sure your BIOS and chipset drivers, at least, are up to date from your machine manufacturer's support site. 
  7. Make sure Windows 10 is fully up to date. To do this:
    1. Click Start
    2. Type Windows Update and press Enter
    3. Click Check for Updates
    4. Let your computer install whatever updates it finds. 
    5. Once it is finished, restart your machine by clicking Start > Power > Restart, even if it has not asked you to do so.
    6. Repeat steps A through E until your machine finds no updates just after restarting.
  8. Download the latest Killer Control Center package, which also contains the latest drivers for your Killer network adapters - https://www.killernetworking.com/driver-downloads/item/killer-control-center-x64 - and double-click to install. 
  9. If you notice any issues with your Bluetooth, and you have a Killer Wireless adapter (Killer 1435, 1535, 1525, 1550) download and install the latest Bluetooth driver from our website - https://www.killernetworking.com/driver-downloads/category/bluetooth.
  10. If your wireless access point (router or modem) seems to struggle with a new Killer Wireless adapter, either slowing down, restarting, or freezing, please first try unplugging the access point and plugging it back in. If that does not resolve the issue, the device likely needs a firmware update. For a wireless router that you own, please see the support for our specific device. For a wireless modem that is owned by your ISP, please contact your ISP and request that they update the firmware on your modem. 
  11. If you have a wireless router that continues to reset when the 1535 connects to it, even after you have updated the firmware, please see this article - https://www.killernetworking.com/driver-downloads/kb/faq/35-router-issues-with-1535.

If you encounter any further issues with your Killer adapters, please do not hesitate to contact us directly!

 

VPNs and Chrome

 

VPNs and Chrome

Users may notice network interruptions when using Chrome on VPNs. This may not be related to your networking adapter, but rather an issue with Chrome and your computer's Internet settings. The resolution is to stop your computer from automatically detecting proxy settings, which are unnecessary unless you are using a proxy, and can be disruptive when using Chrome with a VPN. Here are the steps:

  1. Click Start
  2. Type Internet Options and press Enter or click "Internet Options"
  3. Click the Connections tab
  4. Click the LAN Settings button
  5. Make sure the box beside Automatically detect settings is NOT checked

You can now close any remaining open windows. 

VPN Client Connectivity Issues

 

Shrewsoft and Other VPN Clients

Previous versions of the Killer Control Center had some issues with some VPN clients. These issues have been resolved with the current releases. 

We suggest you download the latest Killer Control Center, found here - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64

Keep in mind that the Killer Control Center contains our latest drivers, and supersedes the Killer Network Manager that you might find pre-installed on your machine from the manufacturer. 

Once you have the latest Killer Control Center handy, please follow these steps: 

Note: It is important to be aware that, when troubleshooting, you should always shut down your computer by clicking the Start button in the lower left-hand corner, clicking the Power symbol, and clicking Shut Down. You should always reset or reboot your computer by doing the same, but clicking Restart, instead. The power button on most laptops, and some desktops, is not configured to shut the machine down, but rather to sleep the machine. Sleeping the machine does not accomplish the same thing as shutting it down or restarting it. 

  • Uninstall any Killer Performance Suite and Killer Drivers entries in your Apps & Features menu
  • Restart your machine
  • Run the installer package that you just downloaded
  • Restart your machine once more

You should now have the latest drivers, and the latest Performance Suite installed. This should resolve any issues with VPN clients connecting. Please let us know if this does not solve your issue.

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 - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64. 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 - http://www.killernetworking.com/driver-downloads/kb/cat/7-installing-and-updating#anchor2. You can also reach out to us directly here - http://www.killernetworking.com/about/contact.  

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 http://www.killernetworking.com/about/contact 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 http://www.killernetworking.com/about/contact so that we may assist you further.

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 - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64. 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 - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64. 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 - http://www.killernetworking.com/driver-downloads/item/e2200-e2400-wireless - 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.

Network Column in Windows Task Manager Not Working

 

For our software to display bandwidth correctly, Windows NDU (Windows Network Data Usage Monitoring Driver) ends up getting stopped/disabled. This is because both services work by examining packets, and both doing so at the same time can cause conflicts.

If you force NDU to run while Killer Control Center or Killer Network Manager is installed, those two programs may not display bandwidth correctly.

If you would like to re-activate the Windows NDU to test for yourself, open a Command Prompt and enter the following:

sc config ndu start=auto

After you enter that command, reboot your Computer.

NDU should now be set to start automatically and the Task Manager Processes tab should show traffic in the Network column, but the Killer Control Center or Killer Network Manager might not work properly.

To disable it, enter the following into a Command Prompt:

sc config ndu start=disabled

After you enter that command, reboot your Computer.

No Killer Enabled Devices On Linksys WRT32X and WRT32XB

 

Users with Killer Network Adapters and the Linksys WRT32X may see "No Killer Enabled Devices" or "0 Killer Enabled Devices" on the user interface page of their WRT32X. 

The Killer optimization on the WRT32X is compatible with all Killer adapters that work with the Killer Control Center, which includes the:E2500, E2400, E2200, E2201, and all of our Wireless-N and Wireless-AC adapters. 

Please note that Windows 8.1 or 10 is required on the Killer enabled device for the router to label it as such in the router's interface. The router will still prioritize the Windows 7 Killer enabled device, but it will not appear that way in the router interface. 

You must also have a recent version of the Killer Control Center installed. You can find the latest version of the Killer Control Center here - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64. If you run into any problems updating your performance suite, you can refer to our installation troubleshooting KB here - http://www.killernetworking.com/driver-downloads/kb/faq/6-troubleshooting-killer-ethernet-wireless-drivers-software.

After you have installed the latest Killer Control Center, if the router still fails to detect the Killer adapters, you may need to unplug the router for ten seconds, then plug it back in. If it still does not recognize the adapters. you may need to restart your computer once more by clicking Start > Power > Restart

Consoles will not appear as Killer Enabled Devices, even on the WRT32XB. The unlike the WRT32X, however, the WRT32XB will identify the XBOX ONE by name. You can then assign it priority within the router's UI. 

If you still experience issues, it is recommended that you contact Linksys Support unless you are having other issues with your Killer adapter, in which case you should reach out to us through the contact form below. 

 

Memory Leaks

 

Some users have reported memory leaks with some versions of our performance suite. The current version of the Killer Control Center has no known instance of memory leaks. Unfortunately, when a computer is assembled, the software that is installed on the computer will not necessarily be up to date when the user unboxes the machine. This means that the user will need to update the software. Various computer manufacturers test and provide various versions of our software on their own support pages at their discretion, so the version of our software that you might find elsewhere on the web may not be the most up to date. If you are experiencing memory leaks, we highly suggest downloading and running the latest Killer Control Center installation package direclty from us, from this location - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64. If you experience any memory leaks, or any other issues with the latest Killer Control Center, please reach out to us at the contact information below. 

DNS_PROBE_FINISHED_NO_INTERNET Error

 

DNS_PROBE_FINISHED_NO_INTERNET Error

Some users may encounter a DNS_PROBE_FINISHED_NO_INTERNET error when browsing. This seems to happen most often with Google Chrome, but users have reported the error with other browsers, as well. This error is generally not related to or caused by your Killer Networking drivers, or the Killer Control Center. However, using very outdated drivers could potentially cause this problem, so updating to the latest drivers is a good idea. Following are some troubleshooting steps to resolve this issue:

  • Update to the latest Killer Control Center (click me for a guide).
  • Restart your network devices and network stack (click me for a guide). The vast majority of users with this issue report that this resolves the problem for them. 
  • Make sure your browsers are not trying to use a proxy. The following settings affect Chrome, and some other browsers in Windows. 
    • Click Start
    • Type Internet Options and press Enter
    • Click the Connections tab
    • Click LAN Settings
    • Unless you are using a proxy (if you don't know, you probably aren't), none of these boxes should be checked, not even Automatically detect settings. Uncheck them all.
    • Click OK, then OK on the previous window, then test to see if the problem is solved.
  • Scan your system for Malware. Malwarebytes is a good, free anti-Malware tool that may find things that the built-in Windows Defender did not catch. 
  • If you are using an antivirus application other than Windows Defender, some have noted that this issue was caused by antivirus applications. Try completely uninstalling the antivirus application to see if that resolves the issue. Many times, even if this does resolve the issue, you can restart your computer and reinstall the antivirus application, and the issue will not return. Unfortunately, disabling these applications will not do the same thing, as they will continue to manipulate network traffic when disabled. They must be uninstalled. 
  • Completely uninstall and reinstall your network drivers, deleting the drivers stored in your driver cache and the files in your temp folder (click me for a guide). 
  • Clear the cache for your browser(s). Please note that this will delete some saved logins if those logins are not saved by the browser's login saving feature, and are instead just "remembered." You will need to refer to your browser for further details, if you are unsure.
  • Specify your DNS servers. This shouldn't be necessary, but some users have reported that doing so has solved this issue. To do this:
    • Right-click Start
    • Click Network Connections
    • Click Chance Adapter Options
    • Right-click the adapter that you are using for Internet and click Properties
    • Double-click Internet Protocol Version 4
    • Click the button for Use the following DNS server addresses, which should open up the number fields below. In them, type the addresses for Google's free DNS servers:
      • 8.8.8.8
      • 8.8.4.4
    • Click OK and then click OK again, then close the rest of the open windows and test. 

If you know of another solution to this issue, aside from resetting Windows, please send us an email and let us know at killersupport@rivetnetworks.com!

Game Will Not Launch Due To BfLLR.DLL

 
Some users may encounter an error where games are unable to launch due to BfLLR.DLL being blocked.
 
The issue is that the anticheat mechanism used by some games is erroneously blocking certain .DLL files used by various applications that are in no way related to cheating. BfLLR.DLL is currently one of those files. Ultimately, the fix should come from the anticheat software engineers fixing this faulty behavior.
 
If you are using the Killer E2200, or any of our wireless adapters, and it came preinstalled with the Killer Network Manager, you can update to the new Killer Control Center instead of the Killer Network Manager. The Killer Control Center does not use BfLLR.DLL. You can use these steps to remove the Killer Network Manager, and install the Killer Control Center. 
  1. Download the latest Killer Control Center installation package from here - https://www.killernetworking.com/driver-downloads/kb/faq/22-update-killer-control-center
  2. Download the Killer Software Uninstaller - https://www.killernetworking.com/support/KillerSoftwareUninstaller.exe
  3. Disable or temporarily uninstall any antivirus application you may be running. This is important as antivirus programs may prevent the .DLL from being removed.
  4. Run the Killer Software Uninstaller, and click Remove Killer Software. It will say REBOOT REQUIRED when it is finished.
  5. Restart your computer by clicking Power > Start > Restart.
  6. Once the machine has restarted, verify that C:\Windows\System32\BfLLR.DLL is no longer present. You may need to show hidden files in this folder by clicking View and putting a check in the box for Hidden Items. If the file is still present, set a system restore point (https://support.microsoft.com/en-us/help/4027538/windows-create-a-system-restore-point) and then manually delete the BfLLR.dll.
  7. If you are unable to delete the BfLLR.DLL file even with no antivirus program installed, you may have to do it from safe mode - https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-safe-mode
  8. Once BfLLR.DLL is no longer on your drive, install the new Killer Control Center that you downloaded, which will contain the latest performance suite and drivers for your Ethernet adapter.

If you are unable to delete the BfLLR.DLL file, or if you have any other issues with a Killer product, please feel free to reach out to us for further assistance. 

Error 1721 Upon Killer Network Manager Installation

 

Error 1721 Upon Killer Network Manager Installation

Please note that this KB article only pertains to legacy products. If you are encountering issues with a currently supported Killer Network Adapter (Killer E2200, E2400, E2500, and all Wireless adapters) you can find the latest suite (Killer Control Center) here - http://www.killernetworking.com/driver-downloads/item/killer-control-center-x64. Please download the Killer Control Center, uninstall the Killer Network Manager and any Killer Drivers listed in your Apps and Features or Add/Remove Programs menu, restart, then install the Killer Control Center.

PROBLEM: Upon installation of the 6.0 software suite, you receive this error:

*Bigfoot Networks Killer Network Manager Error

*Error 1721.There is a problem with this Windows Installer package. A program required for this install to complete could not be run. Contact your support personnel or package vendor. Action: RegisterLSP64, location: C:Program Files\Bigfoot Networks\Killer Network Manager\KillerTool.exe, command: -lsp-map

SOLUTION: Install Microsoft .NET Framework 3.5 Service Pack 1. This update is also part of the Windows Automatic Update.

The direct download for this pack can be found here.

 

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