📖 READER VIEW (Read-Only, Public Access)
Network Adapter Not Recognized
AI Analysis Summary
The user's network adapter is not appearing in Device Manager, preventing any network connectivity. Driver updates have already been attempted without success.
報告された問題
質問
5 questionsWhen did this issue first start occurring? (ID: 3455)
Recently, after a software update
Does your computer have any other network adapters (e.g., a separate USB Wi-Fi adapter) that are also not working? (ID: 3456)
No
Have you recently installed any new hardware or software on your computer? (ID: 3457)
Yes
Can you confirm if the network adapter is an integrated component of the motherboard or a separate expansion card? (ID: 3458)
Integrated motherboard component
What is the make and model of your computer? (ID: 3459)
Dell Inspiron 15
Identified Causes
3 原因ネットワークアダプターのハードウェア障害
75%年齢、電力サージ、または製造上の欠陥により、物理ネットワークアダプター自体が故障した可能性があります。これが、デバイスマネージャーにまったく表示されない理由を説明しています。
破損したシステムファイルまたはオペレーティングシステムの問題
60%ハードウェア検出またはドライバー管理に関連する重要なオペレーティングシステムファイルが破損している可能性があり、ネットワークアダプターが認識されない原因となっています。これは、Windowsの更新プログラムの不具合やマルウェアが原因である可能性があります。
マザーボードまたはチップセットの問題
40%マザーボードにネットワークアダプターが統合されている場合、マザーボード自体またはそのチップセットの問題が根本原因である可能性があります。これはより深刻なハードウェアの問題です。
Recommended Solutions
6 ソリューションPerform a System Restore
🤖 AI Analysis
"The user explicitly stated the issue started 'Recently, after a software update.' A System Restore is designed to revert the system to a previous state, which is highly likely to resolve an issue caused by a recent software update."
Check BIOS/UEFI Settings
🤖 AI Analysis
"The network adapter is not showing up in Device Manager, which could indicate it's disabled at a lower level. Checking the BIOS/UEFI settings is a crucial step to ensure the integrated hardware is enabled before troubleshooting software or driver issues."
Run System File Checker (SFC)
🤖 AI Analysis
"A recent software update could potentially corrupt system files, leading to hardware not being recognized. Running SFC is a good step to check for and repair such corruptions."
Update Chipset Drivers
🤖 AI Analysis
"Since the network adapter is integrated, chipset drivers are essential for its proper functioning. A software update could have installed incorrect or corrupted chipset drivers, or the update might have been related to chipset functionality. Updating them is a logical step."
Test with a Different Adapter
🤖 AI Analysis
"While the user confirmed it's an integrated component, the solution suggests using a USB network adapter to confirm connectivity. This is a good diagnostic step to isolate whether the problem is with the integrated adapter or the system's ability to connect to a network in general. However, it doesn't directly fix the non-appearing integrated adapter."
Check Motherboard for Physical Damage
🤖 AI Analysis
"The user's problem description focuses on the adapter not showing up in Device Manager and a recent software update. Physical damage to the motherboard is a less likely cause given this information, although it's a possibility if other solutions fail."
信頼できるリソース
Fix Network Adapter Not Showing in Device Manager - Driver Easy
Dec 27, 2023 ... Fix Network Adapter Not Showing in Device Manager · Solution 1: Show hidden devices · Solution 2: Update drivers · Solution 3: Reset BIOS.
Question - Network Adapter (LAN) has disappeared from Device ...
May 7, 2024 ... If it does not appear in the device manager even when you display hidden devices you start to suspect a bad chip. It is not as common as say a ...
Wireless Network Adapter disappeared from Device Manager after ...
Aug 6, 2022 ... It really is a driver issue, I advise you to go to the manufacturer's website and search for your laptop model. Download all drivers supported ...