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Solved PC dropped off the network

Discussion in 'Networking' started by Accountancy101, Aug 7, 2017.

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  1. Accountancy101

    Accountancy101 Thread Starter

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    Hi,

    First ever forum post so here goes :)

    We have 1 server, 8 PC network. All PCs are running Windows 7 however 1 PC has just dropped off the network and I cant reinstate it. Its a standard fit Lenovo Thinkcentre Edge72.

    The trouble shooter suggests it the network adapter (was onboard). It is enabled and seems to fine in the Device Manager. I have updated, uninstall/reinstalled the drviers but no joy. Disabled onboard in BIOS. Bought a new PCI LAN card added up to date drivers, no joy. Even tried another PC on the same line (just in case). I think that all leads to the PC.

    Ipconfig says the media is disconnected and tried a few commands but my knowledge in this area is lacking.

    Can anyone suggest something to try, or let me know if you require further info.

    TIA
     
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  3. metallica5456

    metallica5456 Andrew Trusted Advisor

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    Have you swapped out the LAN cable as well?
     
  4. Accountancy101

    Accountancy101 Thread Starter

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    Thanks for the reply

    I hadn't. I have proved the line worked as a different PC connected fine on the same line. I've now just change the cable, just in case, but nothing.

    Can there be anything that stops the server's signal coming through? I have also stopped the Windows Firewall and anti-virus. And tried restarting the DHCP service on the PC.
     
  5. pcsolve

    pcsolve

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    Boot the PC from a live PC to rule out Windows settings / prove a hardware fault.
     
  6. metallica5456

    metallica5456 Andrew Trusted Advisor

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    To elaborate on the above, boot from a Live system like Ubuntu or Puppy Linux. If it works fine, then its a windows setting issue. If it doesn't, then its hardware.
     
  7. Accountancy101

    Accountancy101 Thread Starter

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    That was new to me but...

    I have installed Ubuntu to a USB and booted the pc from the usb (without installing). It seems to have worked fine. The network settings show a valid IP address and the correct DNS route. And I can see the server and router although I cant access them. I assume this is a limitation not having it installed.

    As mentioned earlier, it does suggest to be a Windows setting issue.
     
  8. metallica5456

    metallica5456 Andrew Trusted Advisor

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  9. Accountancy101

    Accountancy101 Thread Starter

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    Solved.

    Within the adapter settings was AVG Network Filter Driver. Turned it off and anyway we go!

    Thanks
     
    metallica5456 likes this.
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