You might come across an item named Npcap loopback adapter while browsing through the available networks on your Windows 10 machine. Are you aware of what it is and how to address the problems associated with it? By reading this article from MiniTool, you can gain further insights.

What Is Npcap Loopback Adapter

What exactly is an Npcap loopback adapter? Npcap operates on Windows 7 and newer versions using the new NDIS 6 Lightweight Filter (LWF) API. It performs better than the outdated NDIS 5 API, and Microsoft could remove it anytime.

Additionally, the driver is signed with our EV certificate and approved by Microsoft, ensuring its normal operation even under the more stringent driver signing policies in Windows 10 1607.

Occasionally, clicking the Wi-Fi icon on your Windows desktop will show "Npcap Loopback Adapter No Internet". Some users also mentioned that this Npcap Loopback Adapter error occurs after updating Windows 10.

Upon inspecting this network adapter in the Npcap Loopback Adapter Device Manager, there may be no network connectivity on Windows 10. Alternatively, you might face the Npcap loopback adapter does not have a valid IP configuration on Windows 10 issue.

Related articles:

• 4 Ways to Fix Ethernet Doesn’t Have a Valid IP Configuration
• Fixed: Windows 10 WiFi Doesn’t Have a Valid IP Configuration

Now, let’s explore how to resolve the Npcap Loopback Adapter issue.

How to Fix the Npcap Loopback Adapter Issue

Fix 1: Reinstall Npcap Loopback Adapter Driver

You can fix the Npcap Loopback Adapter issue by reinstalling it. Follow these steps.

Step 1: Open Device Manager, then go to Network adapters.

Step 2: Right-click your Npcap Loopback Adapter Driver, and choose Uninstall.

Step 3: Wait for the process to finish.

Step 4: Click the Action tab, and select Scan for hardware changes.

Afterward, you can download the latest drivers directly from your manufacturer’s website. Once you reinstall them, verify if the Npcap Loopback Adapter issue has been resolved. If not, proceed to the next solution.

Fix 2: Flush the DNS

If the Npcap Loopback Adapter issue persists, you can try flushing the DNS to fix it. Here's how:

Step 1: Enter Command Prompt in the Search box.

Step 2: Right-click it and select Run as Administrator.

Step 3: Type ipconfig/flushdns to fully clear the DNS cache.

Step 4: Now launch the game and check if the Npcap Loopback Adapter problem remains.

Fix 3: Reset the Network

If the previous methods don't work, you might need to reset the network connection on the system. In this scenario, you can attempt to reset the Npcap loopback adapter and system network settings. Follow the instructions below:

Step 1: Press the Windows I keys simultaneously to open the Settings app.

Step 2: Then, click the Network & Internet section. Next, click the Status tab and select the Network reset option.

Final Thoughts

This post presents three approaches to resolving the Npcap Loopback Adapter issue. If you're experiencing similar difficulties, give these solutions a try. Should you have any superior ideas to tackle this problem, feel free to share them in the comments section.

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