In this article, we will troubleshoot connectivity issues with Intel Killer internet adapters.
The Killer NIC, developed by Killer Gaming (a subsidiary of Intel) minimizes lag, latency, and packet loss. However, some Windows computers that run this adapter can experience VPN connectivity issues. Here’s how to solve them.
Adjustments for any network issues
If you can’t connect to NordVPN and have Killer Network Services installed, try disabling it.
If you're unsure whether you have the program installed, simply open your Start menu and search for Killer Control Centre.
- Launch Killer Control Center;
- Go to Settings (gear icon on the left side);
- You'll see a toggle switch for Killer Prioritization Engine (formerly: Advanced Stream Detect). Turn the toggle switch OFF;
- Check if you can connect to a NordVPN server.
Adjustments for Ethernet connection issues
If you still cannot connect to NordVPN, follow these steps:
Disable Killer bandwidth control on Killer Ethernet Controller network:
- Go to Control Panel > Network & Internet > Network and sharing center > Change adapter settings.
- Right-click on the name of your adapter, e.g., Killer E2200 Gigabit Ethernet Controller.
- Click Properties.
- Disable Killer bandwidth control.
Check if you can connect to NordVPN after these steps.
Adjustments requiring re-installation
If the previous steps do not work, your software’s version may be incompatible with VPN clients. Follow these steps:
- Download the latest Killer Control Center for your specific network card, found here - Support for Intel® Killer™ Wireless Products (scroll down until you see Latest Drivers & Software and choose according to your device).
- Once you have the latest Killer Control Center, uninstall all Killer Performance Suite and Killer Drivers entries in your Apps & Features menu.
- Restart your device.
- Run the installer package that you just downloaded.
- Restart your device once more.
Reconnect to a VPN server and check if connection stability improves.