Lenovo ethernet adapter not working

Lenovo ethernet adapter not working DEFAULT

Earlier this year I purchased a Lenovo ThinkPad T laptop. Nice box. But shortly after purchasing it I began to notice that its ethernet adaptor would lose connection on a regular-yet-random basis regardless of the network I happened to be on. I dual-boot with this machine and I did not seem to be experiencing the same problem while running Ubuntu. So&#; I suspected the culprit might be my Windows 7 network driver. Sure enough, after trying several versions of Lenovo-supported drivers, the ultimate solution to this problem was to dump the Lenovo driver completely and download the driver for the LM ethernet controller directly from Intel. Problem solved.

Note that in addition to the installing the base driver for the ethernet controller, the package will also give you the option to install Intel PROSet for Windows Device Manager, Intel Advanced Networking Services, and SNMP for Intel network adapters for Windows 7. The first two are selected for you by default. If installed, Intel&#;s PROSet software provides a custom device manager property page for the adaptor which has some pretty nice features, including diagnostics. Contrary to its name, the Intel Advanced Networking Services feature does not install additional Windows services, rather it installs a couple of extra tabs in the aforementioned device manager property page allowing you to setup and manage teaming and V-LAN tagging on the adaptor. The SNMP for Intel network adapters feature is simply an SNMP agent enabling you to send event notifications via SNMP (requires that the Windows SNMP service be running).

Sours: https://www.iceflatline.com//06/fixing-ethernet-connection-problems-on-the-lenovo-thinkpad-t/

A lot of Lenovo users have reported that they are connected to a network that is fine and other devices are able to connect to intent, except that specific Lenovo laptop. Although the device is connected, they are not able to access the internet. While some Lenovo laptop users are reporting that their laptop isn&#;t even able to find any network. So, today in this guide we will help you troubleshoot this issue on Lenovo laptops. We will list out solutions as per different Lenovo laptop models.

Solutions to  Lenovo Laptop Unable To Find Network Or Unable To Access Internet

Lenovo X1 Carbon

  • Run command line using cmd.exe as admin
  • Run to check any 3rd party network services through this command.
  • Normally the built-in network service starts with ms_
  • Then use  to uninstall it.

ThinkPad Tablet X60

There must be an issue with Winsock that handles input/output requests for Internet applications in a Windows operating system. This issue can be solved in two ways.

Method 1

  • Click on Search on Taskbar
  • Search for CMD & open it
  • Type
  • Hit Enter

Now see if the problem still persists, if the issue continues, try the second method.

Method 2

  • Open CMD as administrator
  • Type show catalog & hit Enter
  • Again, type reset catalog and hit Enter

The problem should be gone now. Alternatively, you can try a small application called WinSock XP Fix. Although the title indicates that it is for Windows XP, the application works fine for newer versions of Windows as well.

Lenovo G

  • Press Fn+F5 and turn off airplane mode. When finished, check if you can now detect and connect to the Wi-FI network.
  • Press the Windows key‌+R, type  and press Enter, On the network connections, ensure Wireless Connection is not disabled.
  • Press the Windows key‌ +R, type and press Enter, On the Device Manager,  verify that the wireless card is detected and has no error.
  • Turn off the computer and press the OneKey Recovery button. On the Novo Button Menu, select BIOS Setup. In the BIOS, navigate to the  and ensure that the Wireless LAN is Enabled.

X1 Yoga

Update the driver and check if the issue is resolved. For most users this driver was helpful. Get the driver by following this link.

Lenovo ThinkPad Ts

For Lenovo ThinkPad Ts, tweaking BIOS has caused the issue of not finding any network or not being able to connect to the internet. In this case, follow these steps.

  • Restart your system
  • Press F1 to enter BIOS
  • Press F9 to load default settings
  • Press F10 to save.
  • Exit

Now when you boot into Windows, see if the problem is solved.

Lenovo ThinkCentre Mq 10MR (PC)

On this PC from Lenovo, you should download the Lenovo System Update application and install it. Once it&#;s installed on your system, run it. It will not only download and install the latest drivers for your system but will also update the BIOS. Once the BIOS is updated, the issue should vanish and you should be able to connect to the network and access the internet.

Lenovo Thinkpad Xe

Download and install Microsoft Net. Framework. You should get it to update to at least v but stay away from the latest versions as they have been reported to have issues. Now get the Lenovo System Update Utility and run it. Once it downloads and installs the new drivers, the problem should be solved.

Lenovo Thinkpad T

Get the latest drivers from Lenovo and install them. Once the drivers are installed, restart your system and the issue should be resolved.

Lenovo Ideapad s

Kindly check if the Network adapter is detected in the device manager. To find that out, follow these steps.

Press Windows + X > Device manager > View Tab > Show Hidden Devices > Expand Network adapter > Look for Wifi Adapter. If the adapter is detected then there could be an issue with the WLAN Driver.

Get the WLAN Driver from the Lenovo and once you download them transfer the files to your system and install it. Now the problem should be gone!

Lenovo G

Disabling and enabling the adapter solves the issue. Here is a guide on how to do that. Try following the same. Alternatively, you can try to boot in Safe Mode with Networking and observe. If the internet works fine then there&#;s most likely a security software that&#;s blocking the internet connection. If you have a preloaded Mcafee Security Suite or similar security software, try to uninstall it and observe.

Lenovo Yoga 3 Pro

For Lenovo Yoga 3 Pro, the issue can be solved by uninstalling the WLAN driver and installing it back again. First, download the driver by following this link and then uninstall the driver from your system. Now transfer the files to your system and install the driver. Restart your notebook and now you should see network connections and even connect to the internet as usual.

Lenovo C & C (PC)

For these models of all-in-one PCs from Lenovo, the issue came up when users upgraded from Windows 8 or Windows to Windows In such cases, follow these steps.

  • Click Start, and then type command prompt.
  • Right-click Command Prompt, and then select Run as administrator,
  • Run the following commands:

    regdeleteHKCR\CLSID\{f3-a1adbfcbbc36ba3}/f

     

    netcfg-v-udni_dne

Lenovo Thinkpad W

For Thinkpad W users, the issue can be solved by manually updating to Access Connection

Lenovo G

Try the following steps as described below.

  •  Press Winkey+R > type
  • Right-click on the LAN or WLAN connection and make sure TCP/IPV4 is set to Obtain IP Address Automatically.
  • Run an elevated command prompt and type the following:
  • Reboot the PC in normal mode and test.
  • If the same problem occurs, reboot in Safe Mode, backup all important data and do a System Restore.

Lenovo G and G

Updating the BIOS solved the issue for these laptops. Get the latest update from Lenovo and try it. The issue should be resolved.

These are some of the examples of how this kind of issue can be resolved. Though we have listed possible solutions for some of the selected models which are known to have the issues, you can try the steps provided in this guide for any other Lenovo laptop or PC you might have as well. If you are facing similar issues and want us to help you, just drop the model number of your device below, we will try to assist you.

Sours: https://www.troublefixers.org/lenovo-laptop-unable-to-find-network-or-unable-to-access-internet/
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ethernet port not working

Hi

Just verifying that it is a Lenovo Ideapad IBD type 80QQ laptop?

What OS is installed in the laptop, Win 7, Win or Win 10?

Have you checked the status of the LAN Network adapter and the Audio Controller in Device Manager to see if they are both OK?

If Win10, right click on the Windows Start button on the left side of the Taskbar and click on the Device Manager link.

When in Device Manager, scroll down and click on > to the left of Network Adapter to expand the list.

If there is a red cross next to the LAN Realtek adapter entry, right click on the entry and click on Enable and then check if the LAN connection works OK.

If there is a yellow exclamation mark next to the entry, if the laptop’s WiFi connection is working OK, right click on the entry and select Update drivers and follow the prompts. If you have no direct internet connection from the laptop, here’s a link to the Realtek Ethernet Win 10 drivers for the LAN adapter in your laptop. Download the drivers and install them in the laptop, restart the laptop and check if the LAN connection now works OK.

Do the same with the audio controller. Go to Device Manager > Sound, video and game controllers. Here’s the link for the Win 10 audio drivers for the laptop.

If they both still don’t work check their status in Device Manager. Right click on their entry in the list > Properties > General. Check the status of the device in the Device status box in the middle. Does it say “this device is working properly” or is there an error message?

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Sours: https://www.ifixit.com/Answers/View//ethernet+port+not+working
Fix Lenovo Wi-Fi Not Working in Windows 10/8/7 [2021]

Resolving suspected Ethernet controller problems

The method that you use to test the Ethernet controller depends on which operating system you are using. See the operating-system documentation for information about Ethernet controllers, and see the Ethernet controller device-driver readme file.

Complete the following steps to attempt to resolve suspected problems with the Ethernet controller.

  1. Make sure that the correct device drivers, which come with the server are installed and that they are at the latest level.
  2. Make sure that the Ethernet cable is installed correctly.
    • The cable must be securely attached at all connections. If the cable is attached but the problem remains, try a different cable.
    • If you set the Ethernet controller to operate at Mbps or Mbps, you must use Category 5 cabling.
  3. Determine whether the hub supports auto-negotiation. If it does not, try configuring the integrated Ethernet controller manually to match the speed and duplex mode of the hub.
  4. Check the Ethernet controller LEDs on the rear panel of the server. These LEDs indicate whether there is a problem with the connector, cable, or hub.
    • The Ethernet link status LED is lit when the Ethernet controller receives a link pulse from the hub. If the LED is off, there might be a defective connector or cable or a problem with the hub.
    • The Ethernet transmit/receive activity LED is lit when the Ethernet controller sends or receives data over the Ethernet network. If the Ethernet transmit/receive activity is off, make sure that the hub and network are operating and that the correct device drivers are installed.
  5. Check the Network activity LED on the rear of the server. The Network activity LED is lit when data is active on the Ethernet network. If the Network activity LED is off, make sure that the hub and network are operating and that the correct device drivers are installed.
  6. Check for operating-system-specific causes of the problem, and also make sure that the operating system drivers are installed correctly.
  7. Make sure that the device drivers on the client and server are using the same protocol.

If the Ethernet controller still cannot connect to the network but the hardware appears to be working, the network administrator must investigate other possible causes of the error.

Sours: https://thinksystem.lenovofiles.com/help/topic/7X01/resolving_ethernet_controller_problems.html

Adapter lenovo not working ethernet

Hello,

I have a Lenovo Y50 (purchased January ) running Windows , which until yesterday I used with an Ethernet cord despite having WiFi available. This morning I turned on my laptop and noticed it was using WiFi instead of my Ethernet connection. I made sure the connection was right on my laptop, made sure the connection was right in the router and even swapped out the port in the router it was in. I also tried using a different cord all together, nothing seems to be working. Whats interesting is that besides the laptop not detecting my Ethernet cord, nothing seems to be wrong - I've spent all day using my laptop, just with WiFi instead.

I've called Lenovo support and they think there may be something wrong with my motherboard, but before I send it in I thought I'd get a second opinion. I'm not sure if it helps, but last night there was a severe thunderstorm and the power went out for a couple minutes. At the time my laptop was turned off, though the charger and Ethernet cord were plugged in. I know it may sound weird (not much of a computer person) but is it possible that the power surge somehow traveled up my Ethernet cord and fried the port? I tried looking and it doesn't seem to be damaged as far I as I can tell, but I wanted to be sure.

 

Sours: https://forums.tomsguide.com/threads/ethernet-cord-not-detected/
How to reset Ethernet (wired) network adapter on Windows 10

Hello Alex,

We regret for the inconvenience. Let me assist you to resolve the issue.

To be able to assist you better, let us know a few more details on the below questions.

  • Did you check if you have any wireless (wifi/Bluetooth) connection port open or trying to connect when Ethernet port is communicating?
  • Do you have any security software installed on the computer?
  • What exactly happens when you try to connect to the internet?
  • Which Troubleshooter did you run which notified 'protocol is missing'?
  • Did you verify whether the relevant drivers are the most up to date ones available on manufacturer's website?

Now, as an initial recommendation, I suggest you to check for the latest updates in Windows 10 which helps the PC to make optimal use of Windows 10 capabilities as well as fixing any missing links in performance of the operating system. 

To check for updates now, go to Settings > Update & security > Windows Update, and select Check for updates. If Windows Update says that your PC is up to date, you have all the updates that are currently available.

Next, follow these steps to run the Windows in built troubleshooter:

a)      Write Troubleshooting in the search box and hit enter.

b)      Click on Troubleshooting tab.

c)      Click on view all option on the upper left corner.

d)      Select the Internet connection option from the list.

e)      Click Next to run theTroubleshooter

If it still does not help, I suggest you to refer to the troubleshooting steps outlined in the below Microsoft Help link and check if it helps.

Fix network connection issues

Note: Make sure to use the networking commands as it will definitely help to diagnose and fix common connection problems.

Write to us with the with the updated status and the required information related to Ethernet connections for us to be bale to assist you further.

Thank You.

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Yes I tried turning off the wifi. My security is Kaspersky and I've tried turning that off along with Windows Defender with no luck. When I plug in the ethernet it just shows the little yellow "!" and says "Unidentified network, no internet."

I ran the network diagnostics troubleshooter - I hit change adapter options>diagnose. It runs the troubleshooter, tells me "One or more network protocols are missing on this computer," asks me to try repairs as admin, repeats the message. Detection details says "Windows sockets registry entries required for network connectivity are missing."

Yes, I went to the realtek website and downloaded the latest driver (), still no change. I've also tried uninstalling and reinstalling it and rolling it back.

I went to the link, ran the command prompt but I there's no default gateway listed so I'm not sure where to go from there.

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Hello Alex,

We appreciate the time and effort you have put in to resolve the issue.

At this point, if you have the Windows 7 or 8/ drivers for the device, you may check if installing the drivers for the ethernet adapters in compatibility mode helps to resolve the issue.

Follow the steps to install the drivers in compatibility mode.

1. Go to the location where you had saved your downloaded setup files of the drivers and right click, then select Properties.
2. Select Compatibility Tab.
3. Place a check mark next to Run this program in Compatibility mode and select the Windows 7/8/ operating system

    accordingly from the drop down list.
4. Let the driver to install and then check the functionality.

Hope the above information holds good to fix the issue this time. If you need further assistance, feel free to write to us again.

Thank you.

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Thank you. Apparently the Realtek driver for Windows 10 (version ) doesn't work for any system. I uninstalled and deleted the files, then allowed Windows to scan for hardware changes and install a different driver. Now it's back to version , but most forums say that version is the only one that works. I'm currently trying to go back to that, although I can't find the setup files and don't have the option to rollback the driver.

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This issue has not been resolved.

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Hi Alex,

 

I realize the inconvenience you are experiencing with Windows I will certainly help you.

 

This issue might occur if there is change in Windows sockets and network settings.

 

I suggest you to reset the TCP/IP stack and reset Windows sockets by following the steps below and check if it helps.
1. Press Windows + X key on the keyboard.
2. Click on Command Prompt (Admin).
3. At the command prompt window, type the following commands:
netsh winsock reset catalog
netsh int ipv4 reset reset.log
netsh int ipv6 reset reset.log
4. Restart the computer.

Please get back to us with an update on issue with using network, we will be happy to help.

 

Thank you.

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Sours: https://answers.microsoft.com/en-us/windows/forum/all/issues-with-connecting-to-ethernet-network/eaf-7dffde07f9

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