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My PC causes the whole Internet Connection Down.

Discussion in 'Networking' started by D-cheng, Feb 15, 2013.

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  1. D-cheng

    D-cheng Thread Starter

    Joined:
    Feb 15, 2013
    Messages:
    2
    Case:
    My home has few laptops and mobile phones connected wireless to the home's Router -> & to cable modem.

    Problem:
    When I turn-on this particular HP's PC and connect to the internet (wireless) - the whole house internet connection becomes intermittent (e.g. OFF / ON). The Internet connection is fine (no problem), if this PC is not connected to the Internet (not connected to ie or google).

    Trouble Shoot (without success)
    - I have reformatted the PC and scan the PC with Malware in safe mode (no infection).

    Thank you and I hope someone can HELP!
     
  2. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    65,252
    First Name:
    Wayne
    exact model of the PC
    what windows version

    if you connect the PC to the router with a cable does the same thing happen

    can we see an ipconfig /all
    ------------------------------------------------------------------------
    ipconfig /all
    If you cannot access the internet with this PC, then you will need to paste the results into something like notepad and then copy onto a machine that can access the internet and post the results in a reply here.
    Save the file to a USB flash drive or other removable media. Plug it into the working computer with internet access and copy the file and paste here.

    If you do not have another PC - do you have a phone connected to the internet - can you photograph the result and post the image in a reply
    Note: you will see entries named Tunnel adapter Teredo Tunneling Pseudo-Interface: we dont need to see that information - JUST the infomation above those entries

    We would like to see the results from an ipconfig /all - post back the results in a reply here.

    For Windows 8
    to open a Cmd Prompt or an Administrator Cmd prompt from the Desktop. Use Win + X and choose Command Prompt or Command Prompt (Admin) from the list.

    This should work for all windows version, XP, Vista, W7
    Hold the Windows key and press R

    then type CMD

    then press Enter to open a command prompt box
    (A new dialogue box - black with white font, will appear on screen ):

    In the command prompt window that opens, type the following command:

    Note that there is a space before the /ALL, but there is NOT a space after the / in the following command.

    ipconfig /all > network.txt & network.txt

    It will export the results into notepad and then automatically open the notepad and display on your screen.

    Now all you need to do is copy and paste those results into a reply here
    to do that:
    From the notepad menu - choose Edit - Select all
    all the text will now be highlighted
    Next
    From the notepad menu - choose Edit - Copy

    Now go back to the forum - goto the reply and then right click in the reply box and paste the results.
    The results from the notepad should now appear in the forum reply.
    ------------------------------------------------------------------------
     
  3. D-cheng

    D-cheng Thread Starter

    Joined:
    Feb 15, 2013
    Messages:
    2
    Windows IP Configuration

    Host Name . . . . . . . . . . . . : WHPC-HP
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Broadcast
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : gateway.2wire.net

    Wireless LAN adapter Wireless Network Connection:

    Connection-specific DNS Suffix . : gateway.2wire.net
    Description . . . . . . . . . . . : 802.11n Wireless LAN Card
    Physical Address. . . . . . . . . : 00-26-82-EE-2A-93
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::b06e:69cf:fe29:f862%15(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.1.102(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : Sunday, 17 February, 2013 8:37:49 AM
    Lease Expires . . . . . . . . . . : Monday, 18 February, 2013 8:37:48 AM
    Default Gateway . . . . . . . . . : 192.168.1.254
    DHCP Server . . . . . . . . . . . : 192.168.1.254
    DHCPv6 IAID . . . . . . . . . . . : 369108610
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-18-43-4B-BC-6C-62-6D-7F-13-E2
    DNS Servers . . . . . . . . . . . : 192.168.1.254
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Ethernet adapter Local Area Connection:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
    Physical Address. . . . . . . . . : 6C-62-6D-7F-13-E2
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
     
  4. etaf

    etaf Moderator

    Joined:
    Oct 2, 2003
    Messages:
    65,252
    First Name:
    Wayne
     
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