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Ok, I have one laptop that can see the whole network (it's a windows 2000/XP/OS X network). We have a router at and then that goes to two hubs, and then off of one of the hubs is the WAP. I can ping the gateway (the ), but I can't see the internet or ping any of the DNS we have. I'm on XP. Any laptop I bring over that has XP connects to the network and is on the net with no problems. I've sat a laptop next to mine and compared them side by side and I still can't figure out why mine won't connect since the settings are pretty much identical. We've tried opening up as much security as possible (disabling mac acddress filters, etc.) and still no internet. Yet when I go home I'm on the net as soon as I turn on the computer.

Here's my ipconig/all report while on the problem network:

Microsoft Windows XP [Version 5.1.2600]

(C) Copyright 1985-2001 Microsoft Corp.


>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : mobilebrain

Primary Dns Suffix . . . . . . . :

Node Type . . . . . . . . . . . . : Mixed

IP Routing Enabled. . . . . . . . : No

WINS Proxy Enabled. . . . . . . . : No

Ethernet adapter Wireless Network Connection 2:

Connection-specific DNS Suffix . :

Description . . . . . . . . . . . : D-Link AirPlus DWL-650+ Wireless Car

dbus Adapter

Physical Address. . . . . . . . . : 00-80-C8-AD-8C-AD

Dhcp Enabled. . . . . . . . . . . : Yes

Autoconfiguration Enabled . . . . : Yes

IP Address. . . . . . . . . . . . :

Subnet Mask . . . . . . . . . . . :

Default Gateway . . . . . . . . . :

DHCP Server . . . . . . . . . . . :

DNS Servers . . . . . . . . . . . :

Lease Obtained. . . . . . . . . . : Friday, May 07, 2004 8:39:41 AM

Lease Expires . . . . . . . . . . : Saturday, May 08, 2004 8:39:41 AM

It's network connection 2 because I've removed it and "installed" a new one while trouble shooting, and I'm too lazy to name it. But it's the only network connection.

So why will my laptop see the network, but not the internet on this network. But it will see both at home.

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  • Latest Post Latest Post by alc6379

Dani AI

Generated

Quick approach and what to test next (for , building on 's point): because the laptop gets an address and can talk to the router but not the Internet, first determine whether this is a DNS-only problem or a general routing/NAT problem. Use the commands below to isolate where packets stop and to check for local software or routing issues; the output will point to the fix.

Run these in a command prompt:

ipconfig /all
ping <default-gateway>
ping 8.8.8.8
tracert 8.8.8.8
nslookup www.google.com
nslookup www.google.com 8.8.8.8
ipconfig /release
ipconfig /renew
ipconfig /flushdns
route print
netsh winsock reset

How to read results and likely fixes:

  • If ping to 8.8.8.8 succeeds but domain names fail, it is DNS. Try nslookup against a public server (e.g. 8.8.8.8), temporarily set a known public DNS on the adapter, check the hosts file (C:\Windows\System32\drivers\etc\hosts), and ensure no proxy is set (Internet Options → Connections → LAN Settings).
  • If ping to 8.8.8.8 fails while other machines work, the problem is routing/NAT or a device-specific block. Check tracert — if it stops at the gateway, inspect the router/AP for MAC filtering, client isolation, or per-client firewall/NAT rules. Verify the router’s DHCP lease table for duplicates.
  • If route print shows no 0.0.0.0 default route for the wireless adapter, re-add via DHCP or use route to add a default route. Corrupt LSPs or VPN/filter drivers can break stack behavior; netsh winsock reset plus reboot fixes many of those.

Other practical checks: temporarily disable any personal firewall/antivirus, disable/remove virtual adapters or old VPN clients, and try assigning a test static address outside DHCP range (avoid conflicts). These steps narrow the cause so the correct targeted fix can be applied.

Member Avatar for alc6379

Have you tried setting up static IP addresses? What happens if you give the machine instead of .15?

How is the WAP connected to the hub? Is that with a crossover cable, an uplink port, or is it just straight-through patch cabling?

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