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internet problems not Lan ?

Discussion in 'Networking' started by Lensmeister, Jul 14, 2007.

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  1. Lensmeister

    Lensmeister Thread Starter

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    Hi guys,

    I have a REALLY strange problem. The other night I shut down the desktop and the laptop as normal, The next day I can't get the desktop on to the net at all. All they did was turn on the desktop and plug in the Belkin ASDL router.

    The desktop is an ACER Apsire running Windows XP home edition and Zonealarm Pro and AVG free edition. Windows Explorer 6 and MS Outlook. It is connected to the net via a cable.

    The laptop is connected through the SAME Belkin ASDL modem via it's internal WLAN card and is also running the above software. But the Laptop is working on the net fine!

    Strangely enough the Explorer on the desktop can reach the router page and can work on it but not get on the internet.

    HELP ...... the family can't get on the net to get email (and we are expecting some important emails soon).

    I spent two four hours going over and over looking for why it wasn't working. Hair being torn out, nails being bitten and going grey rapidly.

    Thanks for any help.

    Lensmeister

    p.s.
    I forgot to mention that I can still move files over the LAN between the Desktop and the Laptop.
     
    Lensmeister, Jul 14, 2007
    #1
  3. etaf

    etaf Moderator

    Joined:
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    Messages:
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    First Name:
    Wayne
    sounds like the connection to the router is fine, and you can access the other PC.

    you know the router is working on the internet OK over the wirless connection.

    I would suspect the firewall on the PC not allowing access - check that IE is allowed out - or switch off the firewall and see if it gets out

    also try a ping test as follows



    can you do the following tests

    1) Ping the default gateway
    2) ping google.com by the name
    3) ping google using IP address

    all details below


    ipconfig /all

    TWO Methods to do that - some people have problems with ONE----

    ONE ---------------------------------
    start
    run
    cmd
    ipconfig /all

    rightclick in the box
    select all
    enter
    control key + C key - to copy
    then reply here and
    control key + V to paste

    TWO -----------------------------------------------

    Start, Run, CMD to open a DOS window and type:

    IPCONFIG /ALL >C:\RESULT.TXT

    Open C:\RESULT.TXT with Notepad and copy/paste the entire results here.

    ------------------------------------------------
    try ping the name and then the IP see below

    start
    run
    cmd

    C:\Documents and Settings\wayne>ping {the default gateway ipaddress you got above }


    C:\Documents and Settings\wayne>ping google.com
    C:\Documents and Settings\wayne>ping 64.233.187.99
     
    etaf, Jul 14, 2007
    #2
  4. TerryNet

    TerryNet Moderator

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    Terry
    "I would suspect the firewall on the PC not allowing access"

    Me too. Sometimes the firewall configurations seem to get changed by updates or maybe even randomly.
     
    TerryNet, Jul 14, 2007
    #3
  5. Lensmeister

    Lensmeister Thread Starter

    Joined:
    Apr 17, 2005
    Messages:
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    Hi guys and thanks for the help so far. I was out all day yesterday and today and only got the replies just now.

    When I ping the default gateway I get this:

    [​IMG]

    When I ping the Google I get this:

    [​IMG]

    Thing is I have loaded the same settings into the desktop as the laptop for Zonealarm and it still won't let me on the net :(

    Thanks guys for the help. I am getting greif here ...... kids, wife .... :(
     
    Lensmeister, Jul 15, 2007
    #4
  6. etaf

    etaf Moderator

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    Wayne
    well it is working and has a connection the net - its just the firewall is blocking
    have a look at the programs and see what IE is set to - and i would change it anyway

    exit the firewall and see if it works OK with no firewall
     
    etaf, Jul 15, 2007
    #5
  7. Lensmeister

    Lensmeister Thread Starter

    Joined:
    Apr 17, 2005
    Messages:
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    Totally shutdown Zonealarm .... still no connection :(

    Tried both the Explorer and the Outlook and still nothing.

    The Explorer keeps coming back asking me to dial up a connection although I have no dial up in it.

    The Outlook just wrrors each time.

    Any ideas what's gone wrong ?
     
    Lensmeister, Jul 15, 2007
    #6
  8. JohnWill

    JohnWill Retired Moderator

    Joined:
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    Messages:
    106,418
    Try configuring the DNS for OpenDNS as described here: http://www.opendns.com/start/windows.php

    See if this resolves it. It appears you have a DNS resolution issue, we're just changing the DNS server.
     
    JohnWill, Jul 15, 2007
    #7
  9. Lensmeister

    Lensmeister Thread Starter

    Joined:
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    Messages:
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    Ok ... I got email.

    I got access to the internet. BUT although I don't mind a little adult material it took me to a pron site ;)

    Ok thanks online ...

    What do I have to change on the DNS section to get it back to being "normal" ?

    WHat was the problem ?

    Thanks again..... :)
     
    Lensmeister, Jul 15, 2007
    #8
  10. JohnWill

    JohnWill Retired Moderator

    Joined:
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    Messages:
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    OK, the issue appears to be that whatever DNS server you are using is not functioning correctly. That process pointed you to an alternate DNS server. To undo it, simply reverse the process you did and check the "automatic" box.

    Can I see an IPCONFIG /ALL from the working laptop? Does it receive mail normally without any changes?
     
    JohnWill, Jul 15, 2007
    #9
  11. Lensmeister

    Lensmeister Thread Starter

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    This alptop is fine :)

     
    Lensmeister, Jul 15, 2007
    #10
  12. JohnWill

    JohnWill Retired Moderator

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    It's interesting to note that your IPCONFIG for the laptop points the DNS server to the router, but the non-working machine somehow obtained a DNS server address of 80.225.255.50. I suspect you may have some malware lurking in there yet, how about posting a HijackThis 1.99.1 so we can take a look?
     
    JohnWill, Jul 15, 2007
    #11
  13. Lensmeister

    Lensmeister Thread Starter

    Joined:
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    Messages:
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    Ok Log is here:

     
    Lensmeister, Jul 15, 2007
    #12
  14. JohnWill

    JohnWill Retired Moderator

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    Let me have a security person take a look. I see a suspect entry, but I'm not entirely sure what it is.

    I also see the multiple NameServer entries, which also don't appear normal.
     
    JohnWill, Jul 15, 2007
    #13
  15. dvk01

    dvk01 Moderator Malware Specialist

    Joined:
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    Messages:
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    First Name:
    Derek
    the 80.225.255.50 is a legitimate Tiscali IP addrress But I don't think it is teh correct DNS & looks like a user IP number ( searches say it is a genuine DNS server)

    However nothing Tiscali UK does ever surprises me so I wouldn't be in the least shocked to find it is an invalid or dodgy or broken dns server

    Try these proper Tisacli DNS servers

    Primary DNS 212.74.112.66
    Secondary DNS 212.74.112.67
     
    dvk01, Jul 15, 2007
    #14
  16. dvk01

    dvk01 Moderator Malware Specialist

    Joined:
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    Messages:
    56,283
    First Name:
    Derek
    this is an adware pest that isn't causing your problems but should go

    It is supposed to give yopu money off coupons but also has been known to give not so suitable adverts as well
    O16 - DPF: {4F912770-A045-4603-951E-9B8377084354} (cpbrukie2 Control) - http://a19.g.akamai.net/7/19/7125/14.../cpbrukie2.cab

    Run hijackthis, put a tick in the box beside these entries listed below and ONLY these entries, double check to make sure, then make sure all browser & email windows are closed and press fix checked

    O16 - DPF: {4F912770-A045-4603-951E-9B8377084354} (cpbrukie2 Control) - http://a19.g.akamai.net/7/19/7125/14.../cpbrukie2.cab
     
    dvk01, Jul 15, 2007
    #15

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