Cannot connect to Inernet contrary to Network and Sharing Center

Discussion in 'Windows Vista Networking' started by Hong, Nov 25, 2007.

  1. Hong

    Hong Guest

    Hi all,

    I have had this strange situation many time. My computer suddenly loses
    connection to Internet (i.e. the IE does not get pages, eMail cannot download
    new email, etc.) while the Network and Sharing Center shows my computer is
    connected to a wireless router that is connected to the Inernet. When this
    happens, my other computers that are connected to the router does not have
    any problem with Internet; also a program that accesses another other
    computer still works fine meaning the connection to the wireless router works
    fine. This problem can always be solved by restarting Windows. I have never
    had this problem with XP.

    Any tip to avoid this or solve it without restarting Windows would be
    greatly appreciated.
     
    Hong, Nov 25, 2007
    #1
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  2. In some cases, reset power management may fix this problem. Or this search
    result may help.

    Vista Internet Access IssuesI just upgraded to vista and I never had this
    problem with XP. I've always been able to connect to the internet using my
    router or directly connected . ...
    www.chicagotech.net/vista/vistaieissues.htm


    --
    Bob Lin, MS-MVP, MCSE & CNE
    Networking, Internet, Routing, VPN Troubleshooting on
    http://www.ChicagoTech.net
    How to Setup Windows, Network, VPN & Remote Access on
    http://www.HowToNetworking.com
     
    Robert L. \(MS-MVP\), Nov 25, 2007
    #2
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  3. Hong

    Julian Guest

    If your other equipment does not support it, try turning off IPv6 in TCP/IP
    properties for your adapters... I used to lose WiFi with it on, but *that*
    problem has gone now... (never mind Vista imagining - or creating! - IP
    Conflicts....)
     
    Julian, Nov 26, 2007
    #3
  4. Hong

    Hong Guest

    Thanks, Bob.

    I tried all the tips after the Inernet connection was lost again but none of
    them worked (i.e. to regain Internet connection). I had to restart Windows
    again as before.

    I have noticed a scenario to reproduce it fairly reliably - running a
    program that consumes 100% CPU time and accesses a SQL server on another
    computer. I will try Julian's tip first (i.e. disable IPv6) before running
    the program to see this will prevent it from happening not rescuing it.

    Hong
     
    Hong, Nov 26, 2007
    #4
  5. Hong

    Hong Guest

    Hallelujah!!!

    I am so excited to report that I have found the culprit - Base Filtering
    Engine (BFE).

    I have tried almost every tip in the past few days including completely
    uninstalling MaAfee Security Center but nothing works. I got a hint from the
    following discussion
    http://www.gnutellaforums.com/gener...mcafee-2007-limewire-dropping-connection.html

    I started examining the services carefully. When I stopped Base Filtering
    Engine (BFE) and tried Internet access, it worked! Later, it worked two more
    times. I do not have to restart Windows anymore. Now I just need to have the
    Services management console ready and stop and start BFE when I lose Internet
    connection. It is an annoyance, but far better than restarting Windows.

    Thank you all for trying to help out and I really appreciate.
     
    Hong, Nov 29, 2007
    #5
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