Wired connection issue

By FitzyJM
May 10, 2012
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  1. Hi all, Had a friend call me up saying he was having an issue with his internet connection. Having worked for his ISP I went round to have a look and carried out the following:

    Windows 7 Professional
    Onboard atheros ar8121/ar8113/ar8114 pci-e ethernet controller driver

    disabled - reenabled nic
    uninstalled and reinstalled nic drivers
    netsh firewall reset
    netsh winsock reset
    netsh int ip reset resetlog.txt
    changed cable
    checked ports on router with another pc all ok
    stop and start of DHCP client and DNS
    started in safe mode and get same issue
    ran Malwarebytes and SuperAntiSpyware no issues found
    Used static address information
    System restore

    constantly got 169 ip address so installed another NIC (Realtek) and then got network cable unplugged. Had them to reinstall windows and just got a call saying they were having the same issue so was wondering if anyone else had any suggestions of things to try.

    Many thanks in advance.
  2. ITLogicSystems

    ITLogicSystems TS Booster Posts: 28   +7

    Check in BIOS for NIC settings, check for BIOS update, swap out & try different router, try hooking up directly to the ISPs cable/dsl modem/router... Try a linux live bootable disk to see if issue still occurs. if all else fails low level format hdd then do reload. If it's a rootkit, sometimes doing a windows reload does NOT eliminate the rootkit. I use a utility called CBL data shredder to write 0's or 1's to an hdd. It can be downloaded here: http://www.cbltech.ca/data-shredder.html hope this helps!
  3. FitzyJM

    FitzyJM TS Rookie Topic Starter

    Cheers for the reply ITLogicSystems, got it sorted by updating motherboard drivers and got new NIC working, had checked NIC in BIOS, didn't need to swap out router as checked all ports on router and checked router for issues with MAC, changed MAC as well and router is working all ok (supplied by cable ISP). Good shout on live bootable disk will try that in future if I get any issues like that again. Cheers for the link to CBL data shredder.
  4. ITLogicSystems

    ITLogicSystems TS Booster Posts: 28   +7

    Glad I could help. Take care!

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