Loosing Internet Connectivity

Discussion in 'Windows Vista Networking' started by Dustin Brown, Sep 20, 2007.


  1. do you have a 2.4 g wireless phone in the area. that phone can interfere
    with the wireless signal.
     
    John Lee Brown, Mar 10, 2008
    #81
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  2. Hi Bob,

    I'm running version 10.10.0.0 of the Broadcom drivers, dated 4/19/07, so if
    there are new drivers from a couple weeks ago I guess I don't have them.
    I'll have to see if I can find them. I have not tried disabling IPv6, either.

    As far as my network setup, it's pretty straightforward. My cable modem is
    an RCA DCM425, which is connected to my computer w/a standard RJ45 Ethernet
    cable and is plugged into the E'net port on the back of the laptop. I don't
    have any routers, splitters, etc.

    Thanks,
    Tait

     
    Tait Schleisman, Mar 11, 2008
    #82
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  3. Hey Bob,

    Forgot to mention the actual Broadcom card I have. It's the BCM5906 10/100
    Ethernet controller, according to Device Manager, but the Broadcom website
    doesn't list any new drivers for this card. In fact, the only place it lists
    the 5906 is on the Driver Support page as an option for when you're
    contacting their Tech Support. It's not listed on the Driver Download page
    at all.

    Tait

     
    Tait Schleisman, Mar 11, 2008
    #83
  4. Dustin Brown

    Bob F. Guest

    Looks like this is a later driver ver. 10.62.0.0.B:
    http://www.softwaredriverdownload.com/bcm5701_gigabyte_ethernet_driver.html
    It seems to apply to your NIC. Consider this and please turn off IPv6.
    It's easy to do and we can eliminate that from our possible problem list.
    --
    BobF.

     
    Bob F., Mar 11, 2008
    #84
  5. Hi Bob,

    More driver issues - I checked the link you provided, and cross-checked it
    against the Broadcom site. Your link does state that the 10.62 drivers
    should work with my BCM5906, and the Broadcom driver page, while not
    specifically listing the 5906 in the Netlink 57xx section, does offer the
    same drivers. The only problem is, both pages states that the drivers for
    the 5700, 5701 and 5702 are NOT to be used on Vista, which is what I'm
    running. The recommendation is to use the XP drivers. I downloaded those
    and all I got was a Security Catalog file, a Setup Information file and the
    driver; no installer. I don't mind a bit of mucking about in the system
    files, but I'm not entirely sure I want to track down all instances of the
    old driver and remove them (if the system would even let me).

    Also, I did disable IPv6 and I was watching my network status icon and the
    status of my local area connection when I did so. The icon quickly switched
    to the exclamation point in the yellow triangle, and the connection status
    switched to Limited for both IPv4 and IPv6. Then, about 10-15 seconds later,
    the triangle icon disappeared and IPv4 went back to Internet connectivity.
    My fingers crossed that the issue is fixed b/c of the change. Updating the
    driver just sounds like a pain. :)

    Thanks!

    Tait

     
    Tait Schleisman, Mar 11, 2008
    #85
  6. Dustin Brown

    Barb Bowman Guest

    try unbinding IPv6
    http://digitalmediaphile.wordpress.com/ipv6-how-to-unbind-from-a-nic-in-windows-vista/

    --

    Barb Bowman
    MS-MVP
    http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
    http://blogs.digitalmediaphile.com/barb/
     
    Barb Bowman, Mar 11, 2008
    #86
  7. Hi Barb,

    Sorry, I should have been clearer in my last post. When I said I disabled
    IPv6, I did exactly what your blog post said to do, so I've already "unbound"
    it. Sad to say, that didn't solve the problem. I just had to do a restart
    after my connection went down yet again. I don't know what other network or
    NIC settings to check, at this point. Maybe I just need a brand new network
    card?

    Tait

     
    Tait Schleisman, Mar 12, 2008
    #87
  8. Dustin Brown

    Barb Bowman Guest

    before you restart next time this happens, get a new ipconfig /all.
    save it in notepad. reboot, open the file and then copy to the
    clipboard and paste in here as a reply.



    --

    Barb Bowman
    MS-MVP
    http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
    http://blogs.digitalmediaphile.com/barb/
     
    Barb Bowman, Mar 12, 2008
    #88
  9. Ask and you shall receive, Barb. Here it is -

    Microsoft Windows [Version 6.0.6000]
    Copyright (c) 2006 Microsoft Corporation. All rights reserved.

    C:\Users\Tait>ipconfig/all

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : BlueSteel
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Hybrid
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No
    DNS Suffix Search List. . . . . . : hsd1.mn.comcast.net.

    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix . : hsd1.mn.comcast.net.
    Description . . . . . . . . . . . : Broadcom NetLink (TM) Fast Ethernet
    Physical Address. . . . . . . . . : 00-1E-C9-00-B5-07
    DHCP Enabled. . . . . . . . . . . : Yes
    Autoconfiguration Enabled . . . . : Yes
    IPv4 Address. . . . . . . . . . . : 66.41.227.2(Preferred)
    Subnet Mask . . . . . . . . . . . : 255.255.254.0
    Lease Obtained. . . . . . . . . . : Wednesday, March 12, 2008 11:01:45 PM
    Lease Expires . . . . . . . . . . : Sunday, March 16, 2008 10:24:42 PM
    Default Gateway . . . . . . . . . : 66.41.226.1
    DHCP Server . . . . . . . . . . . : 68.87.77.10
    DNS Servers . . . . . . . . . . . : 68.87.77.130
    68.87.72.130
    NetBIOS over Tcpip. . . . . . . . : Enabled

    Tunnel adapter Local Area Connection* 9:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
    Physical Address. . . . . . . . . : 02-00-54-55-4E-01
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    IPv6 Address. . . . . . . . . . . :
    2001:0:4137:9e66:1ccf:3c45:bdd6:1cfd(Pref
    erred)
    Link-local IPv6 Address . . . . . : fe80::1ccf:3c45:bdd6:1cfd%10(Preferred)
    Default Gateway . . . . . . . . . :
    NetBIOS over Tcpip. . . . . . . . : Disabled

    Tunnel adapter Local Area Connection* 10:

    Media State . . . . . . . . . . . : Media disconnected
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : 6TO4 Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes

    Tunnel adapter Local Area Connection* 15:

    Connection-specific DNS Suffix . : hsd1.mn.comcast.net.
    Description . . . . . . . . . . . : isatap.hsd1.mn.comcast.net.
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    Link-local IPv6 Address . . . . . :
    fe80::200:5efe:66.41.227.2%18(Preferred)

    Default Gateway . . . . . . . . . :
    DNS Servers . . . . . . . . . . . : 68.87.77.130
    68.87.72.130
    NetBIOS over Tcpip. . . . . . . . : Disabled

    Tunnel adapter Local Area Connection* 17:

    Connection-specific DNS Suffix . : hsd1.mn.comcast.net.
    Description . . . . . . . . . . . : 6TO4 Adapter
    Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
    DHCP Enabled. . . . . . . . . . . : No
    Autoconfiguration Enabled . . . . : Yes
    Temporary IPv6 Address. . . . . . : 2002:4229:e302::4229:e302(Preferred)
    Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
    DNS Servers . . . . . . . . . . . : 68.87.77.130
    68.87.72.130
    NetBIOS over Tcpip. . . . . . . . : Disabled

    C:\Users\Tait>

     
    Tait Schleisman, Mar 13, 2008
    #89
  10. Dustin Brown

    Barb Bowman Guest

    a couple of things. it's not unusual for the modem lights to blink
    even though you aren't actively doing anything but here is questions
    one:

    does this always happen when you are not using the computer or does
    it ever happen when you are doing something (downloading a file,
    watching a video, browsing, etc.)?

    question two: when you are in this state, from an elevated cmd
    prompt, can you tracert to yahoo.com ? do a nslookup ? please report
    outcome of this. and if not, does running the command

    ipconfig /flushdns

    restore connectivity for you?

    please confirm that network discovery and file sharing are turned
    off in the Network and Sharing Center.

    also, are you using any third party AV/firewalls like McAfee/Norton?

    --

    Barb Bowman
    MS-MVP
    http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
    http://blogs.digitalmediaphile.com/barb/
     
    Barb Bowman, Mar 13, 2008
    #90
  11. Hi Barb,

    This happens no matter what I'm doing. I can be cruising along, reading a
    blog or any other site, and the connection will just drop.

    I'll try the tracert next time it goes down.

    File sharing is off, network discovery was on but I turned it off. I am
    using Trend Micro PC-Cillin for my AV program and the only firewall I have is
    the built-in Vista firewall.

    Tait

     
    Tait Schleisman, Mar 14, 2008
    #91
  12. Dustin Brown

    Barb Bowman Guest

    I don't recommend Trend Micro. Would you consider uninstalling it
    and trying a different AV like Avast (free versions available) or
    NOD32 - $, but the one I always recommend.

    --

    Barb Bowman
    MS-MVP
    http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
    http://blogs.digitalmediaphile.com/barb/
     
    Barb Bowman, Mar 14, 2008
    #92
  13. Hi Barb,

    OK, here are the results of your earlier suggestion. I did a tracert and an
    nslookup when the connection was up for a baseline (pasted below above the
    line of asterisks), and then did the same thing after the connection went
    down (below the line). You can see that neither worked, and trying an
    ipconfig/flushdns did nothing b/c I couldn't even get through to the DNS
    server. Oh, and I'm not wedded to the idea of using the Trend Micro product.
    I had Avast! on my old computer, and never had any problems with it.
    Anyway, here it is -

    Microsoft Windows [Version 6.0.6000]
    Copyright (c) 2006 Microsoft Corporation. All rights reserved.

    C:\Users\Tait>tracert yahoo.com

    Tracing route to yahoo.com [66.94.234.13]
    over a maximum of 30 hops:

    1 * * * Request timed out.
    2 * * * Request timed out.
    3 * * * Request timed out.
    4 * * * Request timed out.
    5 * * * Request timed out.
    6 * * * Request timed out.
    7 * * * Request timed out.
    8 * * * Request timed out.
    9 * * * Request timed out.
    10 * * * Request timed out.
    11 * * * Request timed out.
    12 * * * Request timed out.
    13 * * * Request timed out.
    14 * * * Request timed out.
    15 * * * Request timed out.
    16 * * * Request timed out.
    17 * * * Request timed out.
    18 * * * Request timed out.
    19 79 ms 77 ms 79 ms w2.rc.vip.scd.yahoo.com [66.94.234.13]

    Trace complete.

    C:\Users\Tait>nslookup
    Default Server: cns.westlandrdc.mi.michigan.comcast.net
    Address: 68.87.77.130:53

    *******************************************

    Microsoft Windows [Version 6.0.6000]
    Copyright (c) 2006 Microsoft Corporation. All rights reserved.

    C:\Users\Tait>tracert yahoo.com
    Unable to resolve target system name yahoo.com.

    C:\Users\Tait>nslookup
    DNS request timed out.
    timeout was 2 seconds.
    Default Server: UnKnown
    Address: 68.87.77.130:53
    Server: UnKnown
    Address: 68.87.77.130:53

    DNS request timed out.
    timeout was 2 seconds.
    *** Request to UnKnown timed-out

     
    Tait Schleisman, Mar 16, 2008
    #93
  14. Dustin Brown

    Barb Bowman Guest

    to rule out the DNS server being the culprit, can you configure
    different DNS servers on the NIC temporarily

    type ncpa.cpl in the start/search field [enter]
    right click the connection, then properties
    ack the prompt
    select IPv4, click properties
    use the following DNS servers

    4.2.2.2
    4.2.2.3
    OK

    then run ipconfig /flushdns

    does your experience improve?



    --

    Barb Bowman
    MS-MVP
    http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
    http://blogs.digitalmediaphile.com/barb/
     
    Barb Bowman, Mar 16, 2008
    #94
  15. Dustin Brown

    Barb Bowman Guest

    we will rule out the DNS servers themselves first. my other reply
    has instructions. do you know if others in your neighborhood are
    having issues?

    --

    Barb Bowman
    MS-MVP
    http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
    http://blogs.digitalmediaphile.com/barb/
     
    Barb Bowman, Mar 16, 2008
    #95
  16. I tried your suggestion, and after I changed the DNS servers and flushed the
    cache the return message was "Successfully flushed the DNS Resolver Cache."
    The connection didn't come back up after that, though; I still had to restart.

    I don't know of anyone else in my building who's having issues, unfortunately.


     
    Tait Schleisman, Mar 17, 2008
    #96
  17. Dustin Brown

    Barb Bowman Guest

    ok, reset DHS to automatic like it was before.
    so far you've unbound IPv6, changed from Trend Micro to ?

    next thing to try is a driver rollback for the NIC. go into device
    manager and right click the Broadcom NIC, right click, properties,
    driver - is there a driver you can roll back to? what driver version
    and date is this NIC using?

    --

    Barb Bowman
    MS-MVP
    http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
    http://blogs.digitalmediaphile.com/barb/
     
    Barb Bowman, Mar 17, 2008
    #97
  18. Hi Barb,

    I'm using version 10.10.0.0 of the NIC drivers, from April 2007. As (I
    think) I mentioned in an earlier post, there are new drivers available, but
    the only download links I've been able to find have just been to the driver
    files themselves and not an actual installer. I did download the files and
    try to replace every instance of the old ddriver files I could find, but
    there were some that the system wouldn't let me remove, so I just gave up. I
    don't know that a rollback would help, as I updated the drivers because I
    hoped it would fix the problem, since the computer came with an even earlier
    version, IIRC.

    I updated to Vista SP 1 last night, since I had read that it made some
    networking related changes. Everything seemed fine after the update - I was
    online for a few hours before going to bed and turning off the computer - but
    when I booted up this morning my connection was only up for 30 minutes before
    it went down. I'm back to my initial suspicious that I have a bad NIC, since
    none of the software tricks and tweaks I've tried so far have worked.

    Tait


     
    Tait Schleisman, Mar 22, 2008
    #98
  19. Dustin Brown

    Barb Bowman Guest

    if there is a newer version of the driver and you extract the
    driver, the inf file and the cat file (everything actually) and then
    go into device manager, select the NIC and then update driver, it
    should find the inf file and install the newer driver IF the driver
    is appropriate for your NIC.

    does anything show in the event logs at the time the connection is
    lost?

    --

    Barb Bowman
    MS-MVP
    http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
    http://blogs.digitalmediaphile.com/barb/
     
    Barb Bowman, Mar 23, 2008
    #99
  20. Dustin Brown

    TheScrivener Guest

    Hi

    I have the exact same issues being described here, including the powe
    surge circumstances

    However, I will say this

    My surge protector is top notch. It is the size of a moderatel
    sized-television and has protected countless PCs I've worked with. I'v
    also had many PCs hit with surges and get completely fried when the
    were connected to standard extension cords, power strips,etc.

    My point? That the likelihood of this going through my surge protecto
    at all, let alone wrecking nothing but my Ethernet is next to nothing
    This is simply another nebulous issue with this disastrous OS. I am no
    looking to debate, and I'm offering an alternate solution.

    However, I think there's a solution somewhere in this that doesn'
    involve the absurd hassle of sending your PC off
     
    TheScrivener, Jun 22, 2008
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