Member Avatar for Jdubb999

Hello, I am new.

I've had this problem for the past few days now. I am connected to a network through a linksys router and can share files just fine but I am unable to access the internet from one of my computers.

I can ping ip addresses just fine but not domain names. Also in internet explorer and firefox I cannot connect to even IP addresses. The other computers on the network have access, it's just specific to this computer.

I've tried too many things to list here, if anyone could give me some advice and also tell me what information on my part you would need to help that would be great.


Heres my ipconfig /all

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\Admin>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : j-dubb
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Mixed
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : hsd1.va.comcast.net.

Ethernet adapter Local Area Connection 3:

Media State . . . . . . . . . . . : Media disconnected
Description . . . . . . . . . . . : Realtek RTL8169/8110 Family Gigabit
Ethernet NIC
Physical Address. . . . . . . . . : 00-1B-FC-2D-16-97

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : hsd1.va.comcast.net.
Description . . . . . . . . . . . : Marvell Yukon 88E8056 PCI-E Gigabit
Ethernet Controller
Physical Address. . . . . . . . . : 00-1B-FC-2D-22-32
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . :
Subnet Mask . . . . . . . . . . . :
Default Gateway . . . . . . . . . :
DHCP Server . . . . . . . . . . . :
DNS Servers . . . . . . . . . . . :


Lease Obtained. . . . . . . . . . : Tuesday, December 30, 2008 12:36:47
PM
Lease Expires . . . . . . . . . . : Wednesday, December 31, 2008 12:36:4
7 PM

C:\Documents and Settings\Admin>


Thank you in advance.

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  • Latest Post Latest Post by Jdubb999

Dani AI

Generated

From ’s ipconfig and the checks run by : ICMP (pings) and DNS lookups are working, but a TCP test to port 80 failed and browsers won’t load even literal IP addresses. That pattern rules out DNS and points at a local TCP/HTTP problem on that PC — common causes are a proxy or proxy auto‑config, a personal firewall/AV blocking outbound HTTP, a corrupted Winsock/TCP stack, or malware that hooks web traffic.

Quick, high‑value checks (no repeats of earlier commands):

  • Verify Internet Explorer’s LAN/Proxy settings and Firefox’s network settings are not configured to use a non‑responsive proxy.
  • Inspect the hosts file (C:\Windows\system32\drivers\etc\hosts) for accidental entries redirecting names.
  • Temporarily disable any third‑party firewall/antivirus and retest browsing. If browsing works in Safe Mode with Networking, the culprit is a startup program or service — use msconfig to isolate it.

Collect info and reset the TCP stack (run from an admin command prompt), then reboot:

ipconfig /flushdns
netsh winsock reset
netsh int ip reset
netstat -an
route print
arp -a

If port 80 still fails after the reset, note whether netstat shows any outgoing attempts or established connections when trying to browse. If Safe Mode or the reset fixes it, re-enable security software one piece at a time to find which one blocks HTTP.

If the problem persists: reinstall or roll back the NIC driver, run a full anti‑malware scan (updated definitions), and create a System Restore point before major changes. Since other LAN machines work normally, the router/ISP is unlikely the cause — this is most likely a local software or stack issue on ’s machine.

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Member Avatar for Stylish

Just some basic steps..

Ping your local IP (). Ping your Gateway (). Ping each DNS server (, etc).

Things ok? Let's try a look-up. Open a DOS prompt (Start -> Run -> cmd). Look-up google:

C:\> nslookup www.google.com

You should see a section similar to "Non-authoritive answer:". If you do not, and instead receive an error message, then you are having problems with DNS resolution.

The last step I can think of is to try telnet (Start -> Run -> telnet):

Microsoft Telnet> open www.google.com 80
GET / HTTP1.1

(sometimes requires a blankline)
Did you connect? Get back any HTML? If so, your browsers could have some problems (Proxies, for instance).

Member Avatar for Jdubb999

I pinged my local ip, gateway, and each dns server and they all went through.

Here is my nslookup


C:\Documents and Settings\Admin>nslookup www.google.com
Server:
Address:

Non-authoritative answer:
Name: google.com
Addresses: , , ,
Aliases: www.google.com


C:\Documents and Settings\Admin>


And here is what happened in telnet


Microsoft Telnet> open www.google.com 80
Conecting To not open connection to the host, on port 80: Connect failed
Microsoft Telnet>

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