How To Fix ‘Ethernet Doesn’t Have a Valid IP Configuration’ Error


NIC also known as Network Interface Card that is connected to the Router through the Ethernet Cable cannot detect the IP address, this is exactly when “Ethernet Doesn’t Have a Valid IP Configuration” error occurs.

This is how the different devices like computer or tablets connect via internet. This issue might occur either due to a faulty router or a wrong IP address of the said device. Sometimes it can occur due to faulty NIC.

Ethernet Doesn’t Have a Valid IP Configuration

To solve the problem with regards to “Ethernet Doesn’t Have a Valid IP Configuration” follow the methods suggested below accurately:

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1. Restart Your System

Every device has a pre installed feature called Fast Startup that loads settings within the cache which intern decreases the restart time or boot time.

When Fast Startup was disabled, the issue “Ethernet Doesn’t Have a Valid IP Configuration” was solved.

This could be the best and most effective solution but the device might loose it’s Fast Startup feature forever. To disable Fast Startup follow the steps listed below:-

Step 1:- firstly right click and select “Start Menu” to access “WinX Menu”

Step 2:-  now select Power Options

Step 3:- from your left pane find and click on “Choose what the power buttons do / Choose what the power button does”

Step 4:- tap on “Change settings that are currently unavailable”

Step 5:- navigate down to find Turn on fast startup (recommended) and unselect it, this should disable Fast Startup.

Step 6:- tap on Save changes and log out of  system Settings

Step 7:- finally restart your computer to check whether the problem is solved.

2. Check Your NIC (Network Adapter Settings)

It is the duty of the router to automatically generate an IP address for your device while connecting it to a network. In case it get automatically connected go through your internet properties and correct Settings.

You are required to reconfigure it. Sometimes you may also have to manually connect and generate IP address too.The below mentioned process will be effective on Windows Vista/XP/7/8 and 10.

Step 1:- Tap on Windows + R keys.

Step 2:- Now type in “ncpa.cpl” Next select ok.

Step 3:- Navigate to find “Network Connections window” now right click to find Network Adapter and select properties

Step 4:- Internet Protocol Version 4 (TCP/IPv4), this you will find on your Ethernet Properties window.

Step 5:- from the Internet Protocol Version 4 (TCP/IPv4) pane click on the following statements

  • Obtain an IP Address Automatically
  • Obtain DNS Server Address Automatically

Step 6:- this will automatically open ethernet card. Now it’s time to reboot your device.

3. Reboot Your Router / Modem and Check Ethernet Cable

Shut down your router for a couple of minutes after which turn it on, now it’s time to examine whether your device has a valid configuration. This will surely take sometime.

The new configuration should be a valid one which should do the job and solve your problem. Incase your problem still persists I suggest you use a different Ethernet cable connecting both devices.

In case this doesn’t solve your problem you can try changing your router and connect the PC to a new router this should do the job. If this doesn’t work try changing the network card.

Note that before to try changing your network card do give factory restore a try. Sometimes this can do the job and solve this problem.

4. Resetting Network Settings

In case you couldn’t solve the problems try resetting your network settings. At times using an outdated version could trigger the problem.  It’s time we reset the network in order to get done with this problem. To do so follow:-

Step 1:- tap on Windows + S keys, now type in  “command prompt” and finally tap on Enter.

Step 2:- the command prompt shall open. Type in the command mentioned below

“ipconfig /flushdns ipconfig /renew nbtstat –R nbtstat –RR netsh int ip reset c:\resetlog.txt netsh winsock reset”

Step 3:- now it’s time to restart your device. Once the device restarts tap on  Windows + R keys, now type in “control panel” and finally tap on Enter key.

Step 4:- furthermore click on  Network and sharing center and then tap on Change adapter settings which you shall find on the left panel.

Step 5:- Right-click, to find Ethernet hardware and click on Disable. Once disabled, right-click to tap on Enable. Once done, restart your device

Step 6:- this should solve your problem.

5. Checking the Connected Cables

Like I mentioned before follow the steps listed under each suggested method accurately. In case u have done so and the problem still persists it’s time to check your cables that are connected to the various devices.

Time and again we have come across this situation wherein the users had loose cables which is why the problem existed for a long period of time.

To understand whether you as an user has connected the cable properly note the following things.

When you plug in the Ethernet cable you should be able to hear a sound, this concludes that the jack is correctly fixed. Second clue is to check whether the device blinked.

Another clue to check whether your computer has the problem or no could be to connect Multiple devices to the same modem and check whether the problem persists.

6. Uninstall and Reinstall your Network Adapter

Step 1:- tap on Windows + X keys. Now type in hdwwiz.cpl and finally tap on OK.

Step 2:- now elaborate the network adapter to check your network card id.

Step 3:- on the device ethernet card, right click and finally click on uninstall

Step 4:- navigate towards your top menu and search for Action -> Scan for hardware changes and select the same

7. Disable IPV6

The IPV6 is built to be used in the computer. Sometimes it so happens that the IPV6 creates hindrance in the network settings by automatically connecting to the IPV6 configuration.

This can trigger the problem when it tries to prevent ethernet  from connecting. Which is why we need to disable IPV6 connection. In order to do so follow the steps:-

Step 1:- on your system tray you will come across the network icon, tap on it

Step 2:- click on “Open Network and Internet Settings”

Step 3:- select “Network and Sharing Centre” from there tap on “Change AdapterSettings”.

Step 4:– now right click and tap on properties  from your network connection list

Step 5:- navigate to find Internet Protocol Version 6 (TCP/IP)” and  uncheck it.

Step 6:- tap on “ok” this should do the job

8. Disabling Microsoft Kernel Debug Network Adapter

There is a higher tendancy that there are more then one network adapters installed on your device which has caused this problem.

Many a times it has been witnessed that the “Kernel Debug Network Adapter” plays around with the device therefore creating the whole problem by not allowing the default drivers to do their job. Therefore the right thing to do is to disable it. To do so follow: –

Step 1:- tap on Windows” + “X” keys

Step 2:- from the different alternatives Available click on ” device manager”

Step 3:- click on “view”  and then finally access the “Show HiddenDevices” option.

Step 4:- futhermore right click and find Microsoft Kernel DebugNetwork Adapter” and finally disable it.

Step 5:- select “yes” from your alternatives available.

9. Assigning a MAC Address to the Network Card

To connect accurately with the network the Mac address needs to be entered perfectly. In case of any error in the Mac address entered the device shall not connect through ethernet effectively.

To manually assign the Mac address follow the steps mentioned below

Step 1:- tap on  “Windows” + “R”  keys

Step 2:- on your dialogue box type the following data ‘cmd’ and select enter.

Step 3:- furthermore type “ipconfig/all” and tap enter

Step 4:- write the physical address from the details.

Step 5:- on your system tray you will come across the network icon, tap on it

Step 6:- click on “Open Network and Internet Settings”

Step 7: – select “Network and Sharing Centre” from there tap on “Change Adapter Settings”.

Step 8:- now right click and tap on properties  from your network connection list

Step 9:-  tap on configure after which tap on advance tab.

Step 10:– now tap on network address and further more on “value”

Step 11:- type in the address you received in step 4

Step 12:- select “ok” and save all the changes made.

10. Enable DHCP

The job of DHCP is to automatically detect the device and assign the network built up to it. The issue arrises when DHCP fails to do its job and the network configuration is disabled.

In this method we shall enable the network configuration with respect to DHCP. To do so follow

Step 1:- tap on  “Windows” + “R”  keys. This should open run prompt.

Step 2:- enter the data “services.msc” and tap on enter key.

Step 3:– from your service window, double click to find “DHCP Client“.

Step 4:- select Startup type dropdown. From the different alternatives choose “automatic”

Step 5:- tap on “start”

Step 6:- follow back to right click on “DHCP client”

Step 7:– click on ” restart services”. From the options available click on yes.

11. Disabling Power Management Customizations

To reduce on energy consumption many computers have a power saving feature which disable certain functions.

In case this feature comes in contact with network adapter there might be a serious problem. Follow the steps listed below perfectly to solve this matter

Step 1:- on your system tray you will come across the network icon, tap on it

Step 2:- click on “Open Network and Internet Settings”

Step 3:- select “Network and Sharing Centre” from there tap on “Change AdapterSettings”.

Step 4:- to disable right click on Network connection

Step 5:- now right click and tap on properties  from your network connection list

Step 6:- tap on configure

Step 7:- furthermore tap on power management to undo  “Allow the computer to turn off this device to save power”

Step 8:-  select ok. This shall save the necessary changes.

Step 9:-  right click and tap on enable

Step 10:- check whether the problem is solved.

12. Renewing IP Configurations

There is a high tendency then IP configuration are causing the problem.  Therefore follow the method listed below to solve your problem when IP configuration triggers the ethernet.

Step 1:- tap on  “Windows” + “R”  keys. This should open run prompt

Step 2:- on your dialogue box type the following data ‘cmd’ and select enter.

Step 3:- enter the required commands

IPconfig /release IPconfig /flushdns IPconfig /renew

Step 4:- the problem should be solved.

13. Disabling Antivirus

We always witness this, a third party anti virus causes a lot of issues on the devices therefore we recommend you disable it to check whether the problem still exists. To do so follow

Step 1:- on your system tray you will come across the anti virus icon, tap on it

Step 2:- here you shall the disable option.

Step 3:- in case u don’t find it check on any search engine to find the disable method.

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“Ethernet Doesn’t Have a Valid IP Configuration” by now must have been solved. We hope that we were able to grant you a lot of solutions and suggestions for a simple problem that you as an user have encountered time and again.


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