Solution for Internet Not working or No Network Connectivity Windows 10

While millions of people have upgraded to Windows 10 recently, so nos of problems has raised immediately after the upgradation. SInce last week when Windows 10 pushed “KB3074681” to windows insiders users who were running windows 10 and was classified as a security patch, made number of users crash their PC. And another big problem we have seen is no network connectivity or Internet not working for most users who just upgraded to RTM (ready to manufacture) version of Windows 10. The issue people facing are that there is no wifi option coming, and even if they plug an Ethernet cable, windows 10 still won’t let you connect to internet.Solution for Internet Not working or No Network Connectivity Windows 10

While Microsoft don’t have a solid answer of this question yet, Even their troubleshooter don’t show see any issue with no wifi or internet connectivity. Wifi is not appearing as an option on the left hand side of settings. Some people are able to connect to internet via Microsoft Edge only and others apps are just deprived from getting internet.

Solution for Internet Not working or No Network Connectivity Windows 10

So the solution of this issue is:

If you’ve been using Cisco VPN client in windows 8 or 8.1, sorry to say that you first you need to roll back to your previous windows, then Uninstall Cisco VPN Client and then you can upgrade to Windows 10. Do not uninstall Cisco VPN client in Windows 10, or the problem of no connectivity won’t be solved.

Update: For those who got Cisco VPN installed from Windows 8 or 8.1, try following steps before rolling back to windows 8 or 8.1:

  1. In the search pane (lower left) type ‘cmd’
  2. Right-click on Run Command and select “Run as administrator”
  3. Select “yes” on the prompt
  4. Enter the following in the command prompt:

Check the output of command, if it has DNI_DNE. If yes, then you need to run following commands:


If that gives you an error code:0x80004002, then one last time, try running command:


This command shall check your drive for error and shall fix issues automatically. Restart your PC and then uninstall and install Ethernet driver, if internet worked through Ethernet, then check for updates in Windows 10 and let the updates get installed. If this doesn’t works for you, then you need to rollback only and do like i said above.

 

Update 2: Cisco VPN Client Compatibilty issue has been resolved. Method is bit tricky, but it works:
  • Assuming you upgraded to Windows 10 from Windows 8.1 and has the Cisco VPN client installed which resulted in no connectivity in Windows 10.
  • First thing is to remove completely Cisco VPN Client using revo uninstaller or any other total uninstaller. Also remove any other VPN client you have or had installed already in it. It’s a must thing.
  • Now, uninstall Cisco DNE update completely.
  • Download SonicWall VPN, Cisco VPN Client and anyconnect-win-2.3.2016-pre-deploy-k9.msi from below folder to any blank folder of your choice:

  • First install SonicWall VPN.
  • Then install Cisco VPN.
  • Later on, install anyconnect-win-2.3.2016-pre-deploy-k9.msi file.
  • Now run Cisco VPN and check if everything is OK.
  • If you get error for enabling the adapter, here’s what you need to do:
  • While being on desktop, press windows key + S and type “Run”.
  • When “Run” command box opens, type ‘regedit.exe’ and enter.
  • Navigate to following registry path:

You’ll find some ranger text along with the line of:

Remove everything present before ‘Cisco’, so that the resultant should be:

These texts shall vary from 32 bit and 64 bit windows.

Wondering what’s the role of SonicWall VPN? It installs the DNE LightWeight Filter required by Cisco VPN Client to function correctly on Windows 10 and you’ll not get any peer error while connecting.

For some, of whom WiFi is working but Ethernet shows error of either unplugged or broken, then you need to completely uninstall Ethernet driver from Windows 10 and let Windows 10 update it or if that doesn’t work since you might not be having internet connectivity, then you can try installing Ethernet driver afresh. This should work.

Chances are that you would need to download windows 10 again for re-installing purpose, then rather than allowing media creation tool upgrades your PC automatically, make a bootable USB pen drive of Windows 10, and then keep playing between uninstalling or installing windows. What this method shall do, is you would have a backup of windows setup files in your pen drive and you’ll need not to download again and again. Also, if the setup from pen drive asks for product “key”, just skip that step and let the installation complete. You’ll automatically find your windows activated.

Chances are many times, you might can find Wireless or Ethernet driver disabled in Device manager after you upgrade to Windows 10. So, just go to device manager, and Enable the same which-soever you find it disabled.

Also uninstall the antivirus and firewall softwares and give this method a try before rolling back. Problem is, that these 3rd party softwares are yet not compatible with Windows 10, and after upgrading, they might can interfere with Network connectivity for security or “God knows” purpose.

Last not the least, many people just forget to restart PC after an upgrade. So, go ahead and give your PC or Laptop, a proper shut down, leave it for few minutes and then start again. This way, atleast you should find “WiFi” working, but might you can face error of not able to join the wireless networks. Then the solution was only to roll back to windows 8 or 8.1, remove all interfering softwares like VPN, firewall or any other, then reinstall Windows 10 again.

10 COMMENTS

  1. Thanks for the inputs.

    It did work for me. In fact as said, the only way is to rollback to Windows8.1, uninstall Cisco client and all VPN tunnel clients( I beleive the Deterministic Network Enhancer is the core issue). Re-install Windows10. You should be able to see the wi-fi clients.

    • Thanks Richard for the inputs. I have updated the article now with new solution. If your issue is not yet resolved, you can try the updated solution from above. Thanks 🙂

  2. I’ll clean it up once other solutions are found, but in the mean time I’ll update as confirmation of it working–Hope this helps the rest who still have this problem.

  3. I followed the advise regarding resolving my Win 10 pc Wi-Fi issues by following the “cmd” change of “reg delete HKCRCLSID{988248f3-a1ad-49bf-9170-676cbbc36ba3} /va /f”.

    &

    “netcfg -v -u dni_dne”

    This seems to have created greater issues and I was wondering if I can undo what I did above.

    Please can you advise if this is possibe?

  4. The “reg delete HKCRCLSID{988248f3-a1ad-49bf-9170-676cbbc36ba3} /va /f” command is missing slashes like this: HKCR/CLSID/
    Anyway, the above command did not work for me because the key does not exist in my Registry, BUT the next command, “netcfg -v -u dni_dne” solved the problem after I rebooted!
    Thanks!

  5. Hi. Unfortunately I havent found any working solution for my problem yet. I tired Update 2 but Revo Uninstaller wasn’t able to find Cisco VPN Client nor any other VPN Clients. Actually I am able to connect internet with WiFI if I drag my computer right next to router or WiFi source. Any ideas?

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