Windows 8 and 8.1 Forums


wifi connected; ethernet card will no longer connect

  1. #21


    Try the uninstall of the Realtek NIC from Device Manager again only this time, if offered, let it delete the drivers to.

    Reboot and let windows rediscover the NIC and find and install the drive again.

    Question, why are you still on 8.0 rather than 8.1?

    If nothing else works, download 8.1 using the MS Media Creation Tool and create a UEFI/GPT install flash drive then try upgrading to 8.1.

    See here: Windows 8 and Windows 8.1 ISO - Download or Create

    If that doesn't help save your data then do a Clean Install of 8.1 using the flash drive created above.

    See here: Clean Install - Windows 8

    Edit: For both of these, Windows 8.1 will use the Windows 8.1 key embedded in UEFI.

      My System SpecsSystem Spec

  2. #22


    Posts : 40
    Windows 8 x64


    Thanks, I may try the full delete.
    I'm not on Windows 8.1 because about 18 months ago, half a year after getting this computer, I accepted Windows 8.1 and it was such a complete disaster that I had to do a clean reinstall of Windows 8 from a recovery disk to get the computer to even boot again, and I completely lost any recovery partition so I'm glad that I have the disk. I then read that Samsung laptops were just not ready to handle Windows 8.1, and I've been wary ever since of taking it again. You can't fall back from it, you have to do a clean reinstall of Windows 8.

    I think I'm going to give Verizon tech support a whack at solving why my ethernet card can't identify the network - they sometimes seem to have manuals or whatever that tell them things I can't figure out on my own, when it comes to the router - I'll let them approach this as an issue with the router and see what they can offer.

    Why do you think a clean OS install will help? I really hate to do that if I don't have to, as it means I have hundreds of Windows updates I have to install plus all my software. Last time I did it, I did it over New Year's weekend and basically spent a day on it, so I consider it the nuclear option...

    I went back to setting it to get an IP address automatically because this morning when I turned on the computer it went into a loop of trying to identify, failing, trying again, failing... that was making the computer unhappy. At least now, it has a live connection even if it has no IP address....

    Oh and PS I'm not on UEFI boot, I'm on legacy. That was one thing I had to do after my Windows 8.1 fiasco in order to even boot, is use legacy. I have no idea why... There IS a BIOS update pending for this computer, maybe I will try that too and see if it helps. Converting to UEFI should be on my list, I found this which makes it seem possible - if it worked in Windows 7 there must be a way to do it in Windows 8! Part of me is thinking that I ought to just make a clean sweep, do a new installation of Windows 8.1 in UEFI and maybe everything will get a new lease on life here...
      My System SpecsSystem Spec

  3. #23


    Posts : 40
    Windows 8 x64


    Just found someone right here on this forum with the same exact ethernet adaptor I have, on Windows 8.1, having the same problem. What is going on????
      My System SpecsSystem Spec

  4. #24


    Posts : 40
    Windows 8 x64


    In the log on my router I see this over and over and over and over and over... I don't know what it means... maybe nothing except that the behavior I'm observing is in fact occurring...

    06/27/2015 12:44:57 PM kernel eth1 Link UP 10 mbps full duplex
    06/27/2015 12:44:57 PM kernel br0: topology change detected, propagating
    06/27/2015 12:44:57 PM kernel br0: port 2(eth1) entering forwarding state
    06/27/2015 12:44:58 PM kernel eth1 Link DOWN.
    06/27/2015 12:44:58 PM kernel br0: port 2(eth1) entering disabled state
    06/27/2015 12:45:03 PM kernel eth1 Link UP 10 mbps full duplex
    06/27/2015 12:45:03 PM kernel br0: topology change detected, propagating
    06/27/2015 12:45:03 PM kernel br0: port 2(eth1) entering forwarding state
    06/27/2015 12:45:04 PM kernel eth1 Link DOWN.
    06/27/2015 12:45:04 PM kernel br0: port 2(eth1) entering disabled state
    06/27/2015 12:45:12 PM kernel eth1 Link UP 10 mbps full duplex
    06/27/2015 12:45:12 PM kernel br0: topology change detected, propagating
    06/27/2015 12:45:12 PM kernel br0: port 2(eth1) entering forwarding state
    06/27/2015 12:45:14 PM kernel eth1 Link DOWN.
    06/27/2015 12:45:14 PM kernel br0: port 2(eth1) entering disabled state
      My System SpecsSystem Spec

  5. #25


    I'm not on Windows 8.1 because about 18 months ago, half a year after getting this computer, I accepted Windows 8.1 and it was such a complete disaster that I had to do a clean reinstall of Windows 8 from a recovery disk to get the computer to even boot again, and I completely lost any recovery partition so I'm glad that I have the disk. I then read that Samsung laptops were just not ready to handle Windows 8.1, and I've been wary ever since of taking it again. You can't fall back from it, you have to do a clean reinstall of Windows 8.
    You should be doing image backups so if a problem occurs, you restore the image and your back to exactly where you were when the image was created. Much better than doing a reinstall from scratch.

    Buy an external USB hard drive, 1TB or more (around $50).
    Use Macrium Reflect Free to do the imaging.

    Good tutorial here: Imaging with free Macrium

    Windows 8.0 is a dead end. All support will be dropped soon, no more updates or security fixes. You must move to 8.1.
    You will not be able to upgrade to Windows 10 unless you are at 8.1.

    Once you have a image backup, try what I suggested in my previous post to clean install 8.1, not do an upgrade.
      My System SpecsSystem Spec

  6. #26


    Posts : 40
    Windows 8 x64


    Thanks... I'm thinking to do that. Should I also try what you advised the Windows 8.1 guy on the other thread with the Dism commands? Will I be able to go to UEFI at the same time as I do the clean install?
      My System SpecsSystem Spec

  7. #27


    Yes, give DISM and SFC a try as this could be a file corruption problem as one thread I found indicated.
      My System SpecsSystem Spec

  8. #28


    Posts : 40
    Windows 8 x64


    I am downloading the Win 8.1 ISO now. I have what I believe is a UEFI capable bios (AMI Bios P09ABI) and a Samsung NP550P5C. The computer was originally sold with Windows 7 but came to me with Windows 8 on it from Best Buy, put on by (ick) the Geek Squad refurbishers. Since I got a Win 8 recovery disk from Samsung and had no trouble with the reinstall, I'm assuming the product key I have is going to be valid for an 8.1 clean install. Some day when I have lots of time and have had a good sleep the night before I will attempt a totally clean install and conversion to UEFI boot at the same time... Do you think I'm being realistic? Going to get a 1TB USB drive soon for my image.
      My System SpecsSystem Spec

  9. #29


    You should have no problem going with a UEFI/GPT install. They key is to create UEFI/GPT install media. The best bet is to use the 8..1 iso you are currently downloading to create a UEFI/GPT flash drive to install from.

    Delete all partitions on the drive you will install to and let the installer create and format what it needs.
      My System SpecsSystem Spec

  10. #30


    Posts : 40
    Windows 8 x64


    I had a very smooth clean install, so now I have a nice laptop booting UEFI and running Windows 8.1. The ethernet card didn't come back to life, so I'm assuming at this point I have a hardware failure and will try a USB ethernet adapter just so I have a wired connection available when necessary or if I'm downloading something large.
    Thank you for your assistance, EightForums is 100% better than Microsoft for Windows knowledge!
      My System SpecsSystem Spec

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wifi connected; ethernet card will no longer connect
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