TechSpot

Connection Problem: Can't connect to many websites

By mohamed930
Apr 6, 2008
  1. Connection Problem: Can't connect to many websites
    ___
    These include the techspot website and forum site, ebay websites and others.
    This is most likely NOT a browser problem because i tried the websites on FireFox, Opera, IE7, and Safari. I am not sure if it is an ISP problem, but in case anyone needs it to help me solve the problem, it is Virgin Media size L broadband backage.

    You may be wondering how I accessed the techspot forums. I did this using a proxy website: thrufare.com

    Here is an example of the error messages i receive when trying to connect:
    Firefox:
    ___
    The Server at http://www.ebay.co.uk/ is taking too long to respond
    ___

    IE7:
    ___
    Internet Explorer cannot display the webpage
    Most likely causes:
    You are not connected to the Internet.
    The website is encountering problems.
    There might be a typing error in the address.
    What you can try:
    Diagnose Connection Problems
    ___


    Opera:
    ___
    Error!
    Could not connect to remote server
    You tried to access the address http://ebay.co.uk/, which is currently unavailable. Please make sure that the Web address (URL) is correctly spelled and punctuated, then try reloading the page.
    Make sure your Internet connection is active and check whether other applications that rely on the same connection are working.
    Check that the setup of any Internet security software is correct and does not interfere with ordinary Web browsing.
    If you are behind a firewall on a Local Area Network and think this may be causing problems, talk to your systems administrator.
    Try pressing the F12 key on your keyboard and disabling proxy servers, unless you know that you are required to use a proxy to connect to the Internet. Reload the page.
    ___


    Safari for Windows:
    ___
    Safari can’t open the page.
    Safari could not open the page “http://www.ebay.co.uk/” because the server is not responding.
    ___


    I have used the cmd.exe command tracert to diagnose, but (ofcourse) i don't understand how i can fix it.
    Here is the results of tracert:
    ___
    C:\Documents and Settings\[UserName]>tracert ebay.co.uk

    Tracing route to ebay.co.uk [66.135.192.41]
    over a maximum of 30 hops:

    1 1 ms 1 ms 1 ms 192.168.1.1
    2 8 ms 8 ms 11 ms 10.143.136.1
    3 11 ms 39 ms 17 ms blfs-t2cam1-b-ge914.inet.ntl.com [213.105.206.20
    5]
    4 119 ms 321 ms 79 ms blfs-t2core-b-ge-wan61.inet.ntl.com [195.182.176
    .25]
    5 10 ms 22 ms 40 ms dbln-bb-b-so-600-0.inet.ntl.com [213.105.172.237
    ]
    6 34 ms 53 ms 14 ms man-bb-b-so-100-0.inet.ntl.com [213.105.174.45]

    7 34 ms 21 ms 22 ms bre-bb-a-so-230-0.inet.ntl.com [62.252.192.89]
    8 32 ms 46 ms 57 ms bre-bb-b-ge-000-0.inet.ntl.com [213.105.174.226]

    9 25 ms 22 ms 31 ms 212.43.162.62
    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 * * * Request timed out.
    20 * * * Request timed out.
    21 * * * Request timed out.
    22 * * * Request timed out.
    23 * * * Request timed out.
    24 * * * Request timed out.
    25 * * * Request timed out.
    26 * * * Request timed out.
    27 * * * Request timed out.
    28 * * * Request timed out.
    29 * * * Request timed out.
    30 * * * Request timed out.

    Trace complete.
    ___

    Another thing worth mentioning is when i try to repair the connection through the windows Connection icon in the taskbar, it says it fails to clear DNS cache.

    If you need any further information, please let me know...
    I'll be most grateful for any help.

    P.S. You may notice that I did not have any formatting in this post (which probably would have made it a lot easier to read). This is because the proxy website would not let me do it.
     
  2. tipstir

    tipstir TS Ambassador Posts: 2,393   +107

    DNS client hasn't started

    make a flushdns.cmd
    add these lines..

    echo ipconfig /flushdns >flushDNS.bat
    echo net stop "DNS Client" >>flushDNS.bat
    echo net start "DNS Client" >>flushDNS.bat
    .\flushDNS.bat

    Source Joebeard (techspot member)

    Also if that doesn't work then un-install the drivers for your network NIC reboot the PC and let windows restore your settings it.. If you have problems more then something else is going on..
     
  3. mohamed930

    mohamed930 TS Rookie Topic Starter

    umm.. what?
    I\\\'m sorry I did not understand any of what you said. Where is flushdns.bat?
    Anyway, i tried flushing the dns by ipconfig /flushdns command. I started dns client from the services (i noticed the windows service wasn\\\'t on!) and repaired the network. The network repair worked, however, the original problem isn\\\'t solved. I still can\\\'t access websites such as eBay, and techspot.

    And as of your second solution, do you mean i should uninstall my network interface card driver, then ....? Install it again? Or just leave Windows to SEARCH for drivers?

    Another thing i should mention: I recently installed comodo firewall (BEFORE this problem happened). After i installed comodo firewall, this problem started happening. So i uninstalled it. But the problem still persists.
     
  4. mohamed930

    mohamed930 TS Rookie Topic Starter

    I have uninstalled my NIC and now it seems to be working.
    My internet works again! I hope this is permanent though :D
     
  5. LookinAround

    LookinAround Ex Tech Spotter Posts: 6,491   +183

    tipstr: Do you know what in the output would suggest DNS client hasn't started yet?

    Interesting only in that i ran a tracert from Chicago. Same type results. And i have no problem routing / timeouts occuring elsewhere!
    >tracert 66.135.192.41

    Tracing route to www.ebay.co.uk [66.135.192.41]
    over a maximum of 30 hops:

    1 10 ms 11 ms 12 ms 172.30.72.1
    2 13 ms 11 ms 12 ms mart-h1.chi-mart.il.cable.rcn.net [207.229.191.130]
    3 11 ms 12 ms 11 ms ge1-0-2.core2.chsl.il.rcn.net [207.172.19.61]
    4 10 ms 11 ms 12 ms ge-6-20-133.car2.Chicago1.Level3.net [63.208.138.9]
    5 14 ms 17 ms 18 ms ae-32-56.ebr2.Chicago1.Level3.net [4.68.101.190]

    6 14 ms 17 ms 19 ms ae-78.ebr3.Chicago1.Level3.net [4.69.134.62]
    7 48 ms 36 ms 36 ms ae-3.ebr2.Denver1.Level3.net [4.69.132.61]
    8 46 ms 37 ms 35 ms ae-1-100.ebr1.Denver1.Level3.net [4.69.132.37]
    9 72 ms 71 ms 72 ms ae-3.ebr2.SanJose1.Level3.net [4.69.132.57]
    10 69 ms 71 ms 71 ms ae-82-82.csw3.SanJose1.Level3.net [4.69.134.218]

    11 60 ms 63 ms 62 ms ae-32-89.car2.SanJose1.Level3.net [4.68.18.132]

    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 * * * Request timed out.
    20 * * * Request timed out.
    21 * * * Request timed out.
    22 * * * Request timed out.
    23 * * * Request timed out.
    24 * * * Request timed out.
    25 * * * Request timed out.
    26 * * * Request timed out.
    27 * * * Request timed out.
    28 * * * Request timed out.
    29 * * * Request timed out.
    30 * * * Request timed out.

    Trace complete.
     
  6. jobeard

    jobeard TS Ambassador Posts: 9,322   +622

    from a command prompt; these commands

    echo ipconfig /flushdns >flushDNS.bat
    echo net stop "DNS Client" >>flushDNS.bat
    echo net start "DNS Client" >>flushDNS.bat
    CREATE THE FILE \Documents and Settings\Your-login\flushDNS.bat

    you can then perform all three necessary actions to properly flush your dns client
    by entering .\flushDNS.bat

    Notice; it is insufficent to just run ipconfig /flushdns; you must also recycle the dns client which is why I created the script -- so I don't forget.
     
  7. LookinAround

    LookinAround Ex Tech Spotter Posts: 6,491   +183

    jobeard: There's something else going on. When i first read the thread i tried routing to the same ip as thread owner (but i'm starting the route from here in Chicago) and it still timed out after hop 11 (see post #5)

    I just ran the sequence of commands you suggested and it still times out from here in Chicago (below)

    Getting blocked at SanJose1.Level13.net in my case???
    /**** Edit ****/
    And if it's timing out (being blocked) when starting the route at two different geographic locations?

    >tracert 66.135.192.41

    Tracing route to www.ebay.co
    over a maximum of 30 hops:

    1 9 ms 20 ms 14 ms 172.30.72.1
    2 9 ms 19 ms 15 ms mart-h1.chi-mart.il.cable.rcn.net [207.229.191.130]
    3 17 ms 11 ms 11 ms ge1-0-2.core2.chsl.il.rcn.net [207.172.19.61]
    4 15 ms 14 ms 11 ms ge-6-20-133.car2.Chicago1.Level3.net [63.208.138.9]
    5 11 ms 17 ms 17 ms ae-32-56.ebr2.Chicago1.Level3.net [4.68.101.190]

    6 26 ms 17 ms 18 ms ae-78.ebr3.Chicago1.Level3.net [4.69.134.62]
    7 41 ms 37 ms 38 ms ae-3.ebr2.Denver1.Level3.net [4.69.132.61]
    8 37 ms 36 ms 36 ms ae-1-100.ebr1.Denver1.Level3.net [4.69.132.37]
    9 61 ms 71 ms 72 ms ae-3.ebr2.SanJose1.Level3.net [4.69.132.57]
    10 82 ms 72 ms 72 ms ae-82-82.csw3.SanJose1.Level3.net [4.69.134.218]

    11 63 ms 63 ms 64 ms ae-32-89.car2.SanJose1.Level3.net [4.68.18.132]

    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 * * * Request timed out.
    20 * * * Request timed out.
    21 * * * Request timed out.
    22 * * * Request timed out.
    23 * * * Request timed out.
    24 * * * Request timed out.
    25 * * * Request timed out.
    26 * * * Request timed out.
    27 * * * Request timed out.
    28 * * * Request timed out.
    29 * * * Request timed out.
    30 * * * Request timed out.

    Trace complete.
     
  8. jobeard

    jobeard TS Ambassador Posts: 9,322   +622

    that is entirely possible, consider:
    tracing foo.com may traverse systems a->b->c-d->foo.com
    starting from some other location,
    tracing foo.com may traverse systems x>y->c-d->foo.com

    now it system c is down, NOBODY can get to foo.com
    did you notice that the url www.ebay.co is not the OFFICIAL Ebay location www.ebay.com ?

    googling for just ebay, I clicked on Visit All Categories
    and arrived at this web page http://cgi1.ebay.com/ws/eBayISAPI.dll?BuyHub

    nslookup shows
    $ nslookup cgi1.ebay.com
    Server: rdns-lb-01.orange.rr.com
    Address: 66.75.160.63
    Non-authoritative answer:
    Name: cgi1.ebay.com
    Addresses: 66.135.210.40, 66.135.204.40 ​

    and ping does not work! (not required for a website operation)
    ping cgi1.ebay.com
    Pinging cgi1.ebay.com [66.135.210.40] with 32 bytes of data:
    Request timed out.
    Request timed out. ​

    and tracert also fails, but at a deeper level (ie I get beyond your timeout and faile beyond yours)
    tracert cgi1.ebay.com

    Tracing route to cgi1.ebay.com [66.135.210.40]
    over a maximum of 30 hops:
    1 <1 ms <1 ms <1 ms localRouter [192.168.0.1]
    2 11 ms 11 ms 8 ms cpe-75-82-128-1.socal.res.rr.com [75.82.128.1]
    3 10 ms 9 ms 10 ms gig11-13.vntrca1-rtr1.socal.rr.com [76.167.3.77]
    4 24 ms 198 ms 215 ms tge9-3.lamdca1-swt1.socal.rr.com [76.167.2.52]
    5 * * 25 ms tge4-0-0.lsanca1-rtr1.socal.rr.com [76.167.2.56]
    6 32 ms 45 ms 27 ms GIG2-0.TUSTCA1-RTR1.socal.rr.com [66.75.161.158]
    7 25 ms 31 ms 28 ms te-3-1.car1.Tustin1.Level3.net [4.71.104.149]
    8 26 ms 28 ms 29 ms ae-2-3.bar1.Tustin1.Level3.net [4.69.132.218]
    9 37 ms 35 ms 36 ms ae-6-6.ebr1.LosAngeles1.Level3.net [4.69.136.202]
    10 38 ms 35 ms 35 ms ae-71-71.csw2.LosAngeles1.Level3.net [4.69.137.6]
    11 29 ms 34 ms 35 ms ae-73-73.ebr3.LosAngeles1.Level3.net [4.69.137.37]
    12 53 ms 36 ms 33 ms ae-2.ebr3.SanJose1.Level3.net [4.69.132.9]
    13 52 ms 53 ms 36 ms ae-83-83.csw3.SanJose1.Level3.net [4.69.134.234]
    14 42 ms 38 ms 50 ms ae-81-81.ebr1.SanJose1.Level3.net [4.69.134.201]
    15 41 ms 37 ms 37 ms ae-4-4.car2.Sacramento1.Level3.net [4.69.132.157]
    16 41 ms 42 ms 41 ms ae-11-11.car1.Sacramento1.Level3.net [4.69.132.149]
    17 * * * Request timed out.
    18 * * * Request timed out.
    19 * * * Request timed out.
    20 * * * Request timed out.
    21​
    YET, the page displays perfectly well :)
     
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