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Killer Network Service blocking some IPv6 websites


I have a Dell Alienware Aurora R11 and Aurora R10 and I am experience a problem with accessing via their IPv6 addresses. It will access the file IPv4 just fine.

Chrome will say "This site can’t be reached The connection was reset." ERR_CONNECTION_RESET and Firefox "Secure Connection Failed" PR_CONNECT_RESET_ERROR.

Rapid reapeted Ctrl+F5 may load the file. This happens on any url as well as some other websites that are IPv6.

The R10 has a Killer(R) Wi-Fi 6 AX1650x and a Killer E2600, running Windows 11.

The R11 has a Killer(R) Wi-Fi 6 AX1650i and a Killer E3000 running Windows 10.

They are both running in 802.11ac on wireless, but this problem happens on Ethernet and Wi-Fi.

I have updating the drivers from Intel and  installed the new Killer Control Center on the R10 with no luck.

There is a thread about this here where 2 others have said they have Dell computers with the same problem.

I discovered that the Killer Network Service is causing the problem.

I don't understand why this service is still running when I uninstall the Killer Intellegence Center. This is also being forced installed by Windows update. 

The soltion is to Stop the service and set it's Startup Type to manual or disabled. Or compeletely uninstall it with the SC DELETE command. 

If the Killer Control Center is updated, it will turn the service back on and you will have to stop and disable it again. 

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2 Replies

Hello MackSix,

Thank you for Intel Ethernet Communities.

Please allow us to route this inquiry to the concerned team. They will get in touch with you as soon as possible.

Let us know if you have questions or clarifications.

Thank you for your patience and cooperation.

Best regards,

Achilles M.

Intel Customer Support


Hello @MackSix.

We are helping you with your issue on the thread ( We will close this thread if you need any additional information, refer to the original thread, or please submit a new question as this thread will no longer be monitored.

Keep in mind that we are still investigating your issue; we will be posting on the original thread once we have a response.

Best regards.

Jean O. 

Intel Customer Support Technician.

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