Unable to connect to internet, LAN connection good.

I have two compaq PC connected to a router via ethernet
LAN cards (original installation).
One connects to the internet just fine and the other one
refuses to connect.
I have tried duplicating the settings in the two PCs but
it is not working.
My LAN connection works great, I can access shared folders
from the two PC.
I can ping the router and the two computers.
I can ping 216.239.57.99 (google) and I get a response;
however, when I try to ping google.com, I don't get a
response.
I can ping a lot of websites but only using the numbers,
when I use the names I get no response.

In the Network connections page, the good computer shows
an icon for the LAN connection and Internet Gateway icons.
The bad computer only shows the LAN connection icon.

On Tue, 22 Jun 2004 08:15:39 -0700, "Vitor" <*email_address_deleted*> wrote:

>I have two compaq PC connected to a router via ethernet
>LAN cards (original installation).
>One connects to the internet just fine and the other one
>refuses to connect.
>I have tried duplicating the settings in the two PCs but
>it is not working.
>My LAN connection works great, I can access shared folders
>from the two PC.
>I can ping the router and the two computers.
>I can ping 216.239.57.99 (google) and I get a response;
>however, when I try to ping google.com, I don't get a
>response.
>I can ping a lot of websites but only using the numbers,
>when I use the names I get no response.
>
>In the Network connections page, the good computer shows
>an icon for the LAN connection and Internet Gateway icons.
>The bad computer only shows the LAN connection icon.

Vitor,

I'd suspect either LSP / Winsock corruption, or dns hijack.

<http://support.microsoft.com/?kbid=811259>
LSP-Fix and WinsockLSPFix <http://www.cexx.org/lspfix.htm>

Search your entire system drive, including hidden and system folders, for file
"hosts". There is one legit copy, in C:\WINDOWS\system32\drivers\etc\. The
others are possibly bogus, and part (but just part) of the problem. Examine the
contents of each copy found, using Notepad. (HINT: Scroll to the end of each
Hosts file, by hitting Ctrl-End, then back up to the top, page by page, before
deciding that the file is empty. Look out for blank lines at the beginning and
end of the file, after localhost, placed there by an exploit!)

Now check for, and learn to defend against, additional problems.

Start by downloading each of the following free tools:
CWShredder <http://www.majorgeeks.com/download4086.html>
CoolWWWSearch.SmartSearch (v1/v2) MiniRemoval
<http://www.safer-networking.org/minifiles.html>
HijackThis <http://www.majorgeeks.com/download.php?det=3155>
LSP-Fix and WinsockLSPFix <http://www.cexx.org/lspfix.htm>
Spybot S&D <http://www.safer-networking.org/index.php?page=download>

Create a separate folder for HijackThis, such as C:\HijackThis - copy the
downloaded file there. Spybot S&D has an install routine - run it. The other
downloaded programs can be copied into any convenient folder.

Start by closing all Internet Explorer and Outlook windows, and running
CoolWebSearchSmartKiller, then CWShredder. Have the latter fix all.

Next, run Spybot S&D. First update it ("Search for updates"), then run a scan
("Check for problems"). Trust Spybot, and delete everything ("Fix Problems")
that is displayed in Red.

Then, run HijackThis ("Scan"). Do NOT make any changes immediately. Save the
HJT Log.
<http://forums.spywareinfo.com/index.php?showtopic=227>

Finally, have your HJT log interpreted by experts at one or more of the
following forums (and post it, or a link to your forum post, here):
<http://forums.net-integration.net/>
<http://forums.spywareinfo.com/>
<http://spywarewarrior.com/index.php>
<http://forums.tomcoyote.org/>
<http://www.wilderssecurity.com/>

If removal of any spyware affects your ability to access the internet (some
spyware builds itself into the network software, and its removal may damage your
network), run LSP-Fix and / or WinsockXPFIx.

And Vitor, please don't contribute to the spread and success of email address
mining viruses. Learn to munge your email address properly, to keep yourself a
bit safer when posting to open forums. Protect yourself and the rest of the
internet - read this article.
http://www.mailmsg.com/SPAM_munging.htm

Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.