Windows 10: Laptop unable to connect to Internet after Windows update

  1.    26 May 2017 #1

    Laptop unable to connect to Internet after Windows update


    Hi,

    I am using an Asus u46-sv since 2011/12. It came with win 7 pro. Got the free win X upgrade and it is now on win X pro. After the latest updates the laptop refuses to connect to the internet. It does detect the WiFi or wired line and says the laptop is connected. However, that is all what happens. The connected status does not translate into bandwidth transfer.

    I tried a tp-link USB dongle- did not work.
    Tried wired. Did not work. Tried using my phone to tether via USB and wireless, did not work. Since I was out of ideas, I brought the laptop to the shop and they could not solve the problem as well. They have uninstall and reinstall the driver, tried their own hotspot, used a new Asus USB wireless dongle, wired connection. Same problem. It detects the AP, connects, then nothing.

    Does anyone know what is going on?

    They suggested that I format the laptop which I don't mind. My problem is how do I get back win X pro as a fresh install. The windows 7 key sticker is still nicely beneath the laptop and the codes are there.
      My ComputerSystem Spec

  2.    27 May 2017 #2

    Your first step would be to simplify the system for diagnostics. For this you want to disable Wireless in Windows. Wireless Networking creates a whole new set of issues, so let's eliminate those.

    Plug the PC into the router with an Ethernet cable. Try all the ports.

    Go to Network Connections (Control Panel > Network & Internet > Network Connections) and check to see if the Local Area Connection is Enabled.

    If still no internet then go to Device Manager and find the Network Adapter for Ethernet and uninstall it, then restart the PC. Test again.

    If none of this works (or you've done it before) then you want to download a version of Linux (Ubuntu is good) to a USB stick and boot into Ubuntu from the stick (no need to istall it, just run it from the stick). Check and see if you get internet connection in Linux.
    If you do then you know it is a problem with Windows, drivers, or settings.
    If it doesn't then you know the problem may be with your router or ISP.
      My ComputerSystem Spec

  3.    27 May 2017 #3

    TV2 said: View Post
    Your first step would be to simplify the system for diagnostics. For this you want to disable Wireless in Windows. Wireless Networking creates a whole new set of issues, so let's eliminate those.

    Plug the PC into the router with an Ethernet cable. Try all the ports.

    Go to Network Connections (Control Panel > Network & Internet > Network Connections) and check to see if the Local Area Connection is Enabled.

    If still no internet then go to Device Manager and find the Network Adapter for Ethernet and uninstall it, then restart the PC. Test again.

    If none of this works (or you've done it before) then you want to download a version of Linux (Ubuntu is good) to a USB stick and boot into Ubuntu from the stick (no need to istall it, just run it from the stick). Check and see if you get internet connection in Linux.
    If you do then you know it is a problem with Windows, drivers, or settings.
    If it doesn't then you know the problem may be with your router or ISP.
    Did all the above before posting the message except the Linux bit. If there is a problem with windows, I will still need to format it either way. Tried connecting at two different locations, did not work.

    Does the Win7 CD key work with the installation media website?
      My ComputerSystem Spec

  4.    28 May 2017 #4

    Windows 10 uses a new Authentication method. Your PC is registered with them, identified by a unique number held in your BIOS. So when you reinstall Windows your PC should be recognized and immediately Authenticated.
      My ComputerSystem Spec

  5.    28 May 2017 #5

    You might want to try a System File Check before you wipe the thing.
    From a Command Prompt, type:
    sfc /scannow
    and press ENTER
      My ComputerSystem Spec


  6. Posts : 6,858
    Windows 10 Pro x64 Build 1709
       28 May 2017 #6

    I would start with a power reset of router, then I would run a Network Reset

    Start=>Settings=>Network &Internet => scroll down right hand side, Reset Network. (Know your wireless passwords.)

    Some have found disabling IPv6 is the answer.

    https://support.microsoft.com/en-gb/...nts-in-windows

    Then I would run the following four commands from command prompt(admin) In commands don't key in stuff in brackets, it is there for your information.)

    ipconfig /flushdns (Clear the dns cache)
    nbtstat -RR (release and refesh NetBIOS names)
    netsh int ip reset (reset ip settings)
    netsh winsock reset (Reset Winsock Catalog)

    If that doesn't cure find an older driver, preferably one from ASUS for your device. Note current driver version that is installed so you can confirm that when you install older driver it works.


    Ken
      My ComputerSystem Spec

  7.    29 May 2017 #7

    Thanks all for the suggestions. Will try it.
      My ComputerSystem Spec


 

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