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One computer will not connect to Internet

Discussion in 'Networking' started by TheJon87, Jul 16, 2012.

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  1. TheJon87

    TheJon87 Thread Starter

    Joined:
    Jul 16, 2012
    Messages:
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    Hi All,

    Having a rather painful problem and after spending 7 hours trying to resolve it myself I figured I'd better ask the experts.

    I noticed yesterday that my Wired connection had stopped working. I ran the Windows Network Diagnostic tool which advises that my Router is not connected to the Internet. I am currently using a laptop running through the same Router and not having a problem with this, although the connection is wireless.
    After a 45 min phonecall with my ISP who very slowly took me through everything I had already tried, they advised me my Network Adapter was at fault and to contact my computer manufacturer. This would all be fine and dandy if I had not connected the same PC via wireless and had the same problem. The wired connection works fine when plugged into the laptop so I'm stumped as to what it could be.

    Please help! My girlfriend is watching chatshows and I have no escape!
    Thanks.
     
  2. TheJon87

    TheJon87 Thread Starter

    Joined:
    Jul 16, 2012
    Messages:
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    Might I also add that the Network is showing my PC as connected to the Router, but saying that I have no internet access, as if my Router should be disconnected from the internet altogether. I'm boggled.
     
  3. etaf

    etaf Wayne Moderator

    Joined:
    Oct 2, 2003
    Messages:
    55,904
    so the PC will not connect in wireless or by cable to the internet - but is connected to the router

    what firewall/security suite do you now or ever had in the past on the PC - trial version of norton, mcafee etc

    lets look at cable connection first
    with a cable connection to the router post back an ipconfig /all and the following three ping tests
    ------------------------------------------------------------------------
    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 results here

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

    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 to notepad and then automatically open notepad.

    Now all you need to do is copy and paste those results to a reply here
    to do that:
    From the notepad menu - choose Edit - Select all
    all the text will be highlighted
    Next
    From the notepad menu - choose Edit - Copy
    Now go back to the forum - reply and then right click in the reply box and paste
    ------------------------------------------------------------------------

    ------------------------------------------------------------------------
    Ping Tests
    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 results 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.

    Start> Run {search bar in Vista/W7}> type CMD to open a DOS window and type:

    Type the following command
    Ping {plus the number thats shown against the default gateway shown in above ipconfig /all}
    Post back the results
    rightclick in the box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste

    Type the following command
    Ping google.com
    Post back the results
    rightclick in the box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste

    Type the following command
    Ping 209.183.226.152
    post back results
    rightclick in the box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste

    ------------------------------------------------------------------------
     
  4. TheJon87

    TheJon87 Thread Starter

    Joined:
    Jul 16, 2012
    Messages:
    16
    Okay my Security Suite is McAffee Internet Security, Never ran any trial versions or anything. Also the problem occurred within an hour, I had perfect connection and returned after cooking dinner and was stumped.
    Here are the results as requested:

    ipconfig all

    Windows IP Configuration
    Host Name . . . . . . . . . . . . : P-PC
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    Ethernet adapter Local Area Connection:
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Realtek PCIe GBE Family Controller
    Physical Address. . . . . . . . . : 00-22-68-82-FF-B0
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . : fe80::1094:ef4e:551a:78c%10(Preferred)
    IPv4 Address. . . . . . . . . . . : 192.168.0.3(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Lease Obtained. . . . . . . . . . : 16 July 2012 13:43:15
    Lease Expires . . . . . . . . . . : 16 July 2012 14:43:14
    Default Gateway . . . . . . . . . : 192.168.0.1
    DHCP Server . . . . . . . . . . . : 192.168.0.1
    DHCPv6 IAID . . . . . . . . . . . : 285221480
    DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-12-B3-02-8B-00-22-68-82-FF-B0
    DNS Servers . . . . . . . . . . . : 194.168.4.100
    194.168.8.100
    NetBIOS over Tcpip. . . . . . . . : Enabled
    Tunnel adapter Teredo Tunneling Pseudo-Interface:
    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    Tunnel adapter 6TO4 Adapter:
    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft 6to4 Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    Tunnel adapter isatap.{06367955-55EE-480C-A938-870617E89671}:
    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Microsoft ISATAP Adapter #8
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    3 Ping Tests

    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.
    C:\Users\~P~>ping 192.168.0.1
    Pinging 192.168.0.1 with 32 bytes of data:
    Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
    Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
    Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
    Reply from 192.168.0.1: bytes=32 time<1ms TTL=64
    Ping statistics for 192.168.0.1:
    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
    Approximate round trip times in milli-seconds:
    Minimum = 0ms, Maximum = 0ms, Average = 0ms
    >
    >
    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.
    C:\windows\system32>ping google.com
    Ping request could not find host google.com. Please check the name and try again
    .
    >
    >
    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.
    C:\windows\system32>ping 209.183.226.152
    Pinging 209.183.226.152 with 32 bytes of data:
    Request timed out.
    Request timed out.
    Request timed out.
    Request timed out.
    Ping statistics for 209.183.226.152:
    Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

    Thanks for the reply.
     
  5. etaf

    etaf Wayne Moderator

    Joined:
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    Messages:
    55,904
    what windows verison are you on - Windows7, Vista, XP

    something is blocking access as you have a good router connection
    it maybe mcafee - see below

    try this
    ------------------------------------------------------------------------
    Safemode with networking
    with a cable connected from PC to router
    check the cable - see if there is a light on the router associated with the cable port used , also check if you have a green/yellow light on the PC LAN port
    - try safemode with networking
    as the PC starts keep tapping F8 - a menu appears - choose
    safemode with networking - see if that works
    ------------------------------------------------------------------------

    are you subscribed to mcafee and receiving updates ?
    if so i would make a note of you subscription information and any keys and then remove
    if not subscribed and not having any updates - then its not protecting you - so remove anyway

    --------------------------------------------------------------

    Mcafee RemovalTool
    http://service.mcafee.com/FAQDocument.aspx?id=TS101331

    http://majorgeeks.com/McAfee_Consumer_Product_Removal_Tool_d5420.html

    --------------------------------------------------------------
    --------------------------------------------------------------
    i'm not an expert here - but if you look through the security forum, you will see a lot of recommendations for windows 7

    The windows 7 firewall is considered adequate and especially you are connected behind a router.
    Have a read in our "general security" forum and look for the advice from our security gurus, they are identified with a gold shield next to their name

    Several excellent free antivirus programs are available.

    Microsoft Security Essentials (MSE)
    http://www.microsoft.com/en-gb/security_essentials/default.aspx

    Avast
    http://www.avast.com/free-antivirus-download

    AntiVir
    http://majorgeeks.com/Avira_AntiVir_Personal_-_FREE_Antivirus_d955.html

    Two other programs to also have on the PC

    Malwarebytes
    http://www.malwarebytes.org/mbam.php
    superantispyware
    http://www.superantispyware.com/download.html


    --------------------------------------------------------------
     
  6. TheJon87

    TheJon87 Thread Starter

    Joined:
    Jul 16, 2012
    Messages:
    16
    I am on Windows 7, I have tried Safemode with Networking and still the same problem. I have a green light on the router port but yellow on the PC port - is this bad? :s I switched the firewall off to try and connect but this also did not work. I can remove and reinstall it if required.
     
  7. etaf

    etaf Wayne Moderator

    Joined:
    Oct 2, 2003
    Messages:
    55,904
    i would try that - fixes lots of blocking issues - but has to be removed
    on the PC port - usually have a yellow one side and green the otherside, one usually flashes when data transmitting


    also try a tcp/ip stack repair

    ------------------------------------------------------------------------

    TCP/IP stack repair options for use with Vista/Windows 7

    Start, Programs\Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt.

    Note: Type only the text in bold for the following commands.

    Reset WINSOCK entries to installation defaults: netsh winsock reset catalog

    Reset IPv4 TCP/IP stack to installation defaults. netsh int ipv4 reset reset.log
    and press enter

    Reset IPv6 TCP/IP stack to installation defaults. netsh int ipv6 reset reset.log
    and press enter

    Reboot the machine.

    If you receive the message
    The requested operation requires elevation.
    Then please open the command prompt as administrator - as requested above
    Start, Programs\Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt.

    Please note and post back - if you receive the message
    Access is Denied

    Post back the results here - we need to know these commands worked correctly
    rightclick in the box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste

    Details also here
    http://support.microsoft.com/kb/299357


    ------------------------------------------------------------------------
     
  8. TheJon87

    TheJon87 Thread Starter

    Joined:
    Jul 16, 2012
    Messages:
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    I haven't removed the Antivirus as yet but have completed the above and still without connection, here are the results:

    Microsoft Windows [Version 6.1.7601]
    Copyright (c) 2009 Microsoft Corporation. All rights reserved.

    C:\windows\system32>netsh winsock reset catalog
    Sucessfully reset the Winsock Catalog.
    You must restart the computer in order to complete the reset.

    C:\windows\system32>netsh int ipv4 reset reset.log
    Reseting Global, OK!
    Reseting Interface, OK!
    Restart the computer to complete this action.

    C:\windows\system32>netsh int ipv6 reset reset.log
    Reseting Interface, OK!
    Restart the computer to complete this action.
     
  9. etaf

    etaf Wayne Moderator

    Joined:
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    mcafee has got to go next
     
  10. TheJon87

    TheJon87 Thread Starter

    Joined:
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    Messages:
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    Just removed it, still nothing. This is mind boggling :s
     
  11. etaf

    etaf Wayne Moderator

    Joined:
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    Messages:
    55,904
    did you run the removal tool twice ?

    try a system restore to before the problem started

    ------------------------------------------------------------------------

    Restore PC to an Earlier Date & Time

    Go Start>>All Programs>>Accessories>>System Tools>>System Restore

    • Click in the radio button Choose a different restore point
    • Click Next
    • put a tick in Show more restore points
    • Pick a Date before this happened
    • Click Next
    This should restore the PC to that time & date


    windows 7
    http://www.sevenforums.com/tutorials/700-system-restore.html

    ------------------------------------------------------------------------
     
  12. TheJon87

    TheJon87 Thread Starter

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    Yes, ran the tool twice and have just completed a system restore.
     
  13. etaf

    etaf Wayne Moderator

    Joined:
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    Messages:
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    same for both wireless and cable on this PC -but all other PCs can connect and work on the router with no problem

    correct
     
  14. TheJon87

    TheJon87 Thread Starter

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    Correct.
     
  15. etaf

    etaf Wayne Moderator

    Joined:
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    Messages:
    55,904
    trying to find a common cause

    it maybe worth uninstalling one of the network adapters and then restarting windows and allow windows to install drivers and tcp/ip binding again

    can you provide the status for all the services

    ------------------------------------------------------------------------
    Services

    We would like to see some status information for each of the services listed below to do this goto

    Start> {Run in XP} {Search box in Vista/W7}> CMD to open a DOS window and type:
    SERVICES.MSC
    OR
    Control Panel>
    Administrative Tools>
    Services>

    then for each of the servies listed below - Please post back the following status information -
    If the service is Started/Stopped
    and
    If the service is Automatic/Manual

    • COM+ Event System (for WZC issues)
    • Computer Browser
    • DHCP Client
    • DNS Client
    • Network Connections
    • Network Location Awareness
    • Remote Procedure Call (RPC)
    • Server
    • TCP/IP Netbios helper
    • Wireless Zero Configuration (XP wireless configurations only)
    • WLAN AutoConfig (Windows 7 & Vista wireless configurations only)
    • Workstation


    If a service is not running,
    right click on the service
    then click on properties and now check the dependencies.

    Check each of the dependencies and see which one is preventing the service from running.
     
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