Fix No LAN (Local Area Network) Access on Windows 10

Jun. 24, 2022 / Updated by Helia to Windows 10

How to fix no LAN access in Windows 10? After the windows 10 upgrade, many users started having LAN (Local Area Network) connection problems. In this case, your Internet works properly, but when mapping network drive or shared folder, you just receive the "Windows cannot access to LAN" error:


There are many factors resulting in such LAN not working issue: hardware problem, faulty LAN adapter, wrong network configuration, etc. Today we’re going to show you several methods to fix the no LAN available problem.

1. Check Hardware Related to the LAN Connection

You can check the hardware related to the LAN network first in case you waste time on other useless computer operations.

Step 1. Contact your local network support and make sure there’s no problem with the network.

Step 2. Turn off and then turn on the WiFi router again, or unplug the Ethernet cable out and then reconnect it. This will help the router to re-find IP address.

Step 3. Switch the wireless button on your laptop. Turn it off and the turn on again.

Step 4. Clean up the dust and re-plug the network card in the port.


After the hardware check, reconnect the LAN to see if you could map the network or shared folder. If the LAN connection problem still persists, continue the reading.

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2. Modify Network Settings Related to the LAN

Turning on the file and printer sharing feature and enabling the guest account will be helpful to fix the “Windows 10 cannot access to LAN” issue.

Step 1. Turn on the File and Printer Sharing

a. Right click on the network icon in the notification area.

b. Select Open Network and Sharing Center.

c. Choose Change advanced sharing settings from the left column.

d. Expand the Guest or public entry.

e. Choose Turn on network discovery and Turn on file and printer sharing options.


Save the changes and go to the Step 2 below.

Step 2. Allow the Guest Account

Use Windows shortcut keysWin + R to launch the Run.

b. Type into regedit.

c. Hit the Enter to open the Registry Editor.

d. Navigate to the following path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters

e. Right click in the blank area from the right column and select New.

f. Select DWORD (32-bit) Value.


g. Rename the DWORD as AllowInsecureGuestAuth and set the value as 1.


h. Click on the OK to finish the settings.


You’d better be careful when modify the Registry, because it is an extremely sensitive system database. If something goes wrong with it, serious system problems, such as 100% disk usage, slow boot, system restore error 0x8000ffff, etc. will annoy you and make your PC stop working completely.

It is highly recommended to create a system restore point to before any changes related to the LAN problem.

Step 3. Enable the Server Service

a. Open the Windows Services.

b. Navigate to the Server service.

c. Double-click on the Server.

d. Click on the button Start.

e. Select Automatic from the drop down menu of Startup type.


f. Click the button Apply and OK to finish the settings.

When you finish the 3 steps, open the Network. Now you will find devices like computers, printers, routers, etc. appear in the local area network and the LAN is available.


If this still does not work, go to Method 3.

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3. Check the LAN Adapter and Drivers

Missing, outdated or incorrectly configured LAN adapter drivers can also result in the no LAN available issue. Besides, faulty network drivers will cause various network problems, like no WiFi available, Windows 10 unidentified network issue, no valid WiFi IP configuration, etc.

If you find yellow exclamation marks beside the LAN adapters in Device Manager, you need to use Driver Talent, the Windows 10 best-matched driver manager, to fix the network driver problems.

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Driver Talent has received good review from engadget and has been reviewed as the “Safest and Fastest Way to Update Drivers”. You could follow the 3 easy steps to detect faulty LAN adapter drivers and repair them:

Step 1. Do a Free Scan

Click on the Scan and Driver Talent will find all the problematic drivers.


Step 2. Update or Repair the LAN Adapter Driver

Click on the Update there are the latest LAN adapter drivers available. Or click Repair to fix driver issues instantly.


Step 3. Restart the PC

When the update or repair work has finished, reboot to ensure all driver changes take effect.

Note: It is better for you to back up drivers before any driver changes so that you can restore the drivers instantly once there are driver crashes.

Now connect to your local area network to see if it is available.

Hope this article can be a reference for you to fix no LAN access in Windows 10 and make you reconnect to your LAN network again. If you still fail to fix the LAN issue on Windows 10 with the methods above, you can click the left menu on this page for special technical support. If you know other ways to solve the no LAN access issue, share with us in the comments section below or go to the OSToto Official forum. Any other Windows 10-related issues, check Windows 10 Issues and Fix for more solutions please.

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