Member Avatar for Gookin

Hi there,

I've just set up a new wireless network in my new house with a BT Total Broadband homehub.
The network is up and running and I have 2 laptops connected and able to access the internet.
My desktop, however, is connected to the network but is unable to do anything that involves the internet.
I have disabled my NIS firewall to see if that is the problem and have compared the settings on my laptop to those on the desktop but I am still unable to access the internet. I did have a brief spell where I was able to browse the pages that link from my home page and log onto Windows Live Messenger but that has ceased to work now.

PLEASE HELP!

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  • Latest Post Latest Post by Beastmanh

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Two laptops can reach the internet but the desktop cannot. already tried disabling Norton and has looked at settings; pointed to firewalls/proxy settings and asked for the ipconfig /all output. Below is a concise, interpretation-focused checklist to narrow the fault to DHCP, DNS, the router, or the desktop itself.

First, read the ipconfig /all output before changing anything: a valid LAN IP in the same range as the homehub, a Default Gateway that matches the router, and at least one DNS entry are required. An address in the 169.254.x.x range means DHCP failed. If the IP looks correct but there is no web access, check reachability to the gateway and to a public IP — gateway reachable but public IP not means router/ISP; public IP reachable but hostnames fail means DNS.

Next, inspect the router and the desktop separately. On the router: DHCP lease table, MAC filtering/blocked devices, and any device limits can stop one machine while others work. On the desktop: try a different cable/port or wireless adapter, update or reinstall the NIC driver, and fully remove leftover security-filter drivers (Norton can leave a filter even when "disabled"). Also verify there is no system proxy set (browser LAN settings vs system-wide WinHTTP proxy differ and both can break browsing).

If useful, boot the desktop from a Linux live USB or Safe Mode with Networking — if networking works there, the issue is Windows-level software. When posting back, include the ipconfig /all output and results of: gateway reachability, a ping/traceroute to a public IP, and the router DHCP list (mask MACs if desired). Do not leave security software disabled permanently.

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Member Avatar for sittas87

What about youre windows firewall.disable the windows firewall [temporary]
Then go to youre internet browser's tools> options> network settings/configurations and make it exactly the same as what youre other machines settings are.

Member Avatar for Beastmanh

It could also possibly be the config in your nic.... Could you please paste the output of ipconfig /all?

In case you aren't familiar with how to do that here is how:

1. Go to 'Start' > click on 'Run'. ( or in vista, hold the 'windows key' and press 'R')

2. type 'cmd' and click 'ok'.

3. Now type 'ipconfig /all' WITHOUT the quotes.... (there is a space between the ipconfig and the '/')

4. Now right click the title bar and select 'edit' > 'select all'.

5. The screen should change color, now press 'Enter'.

6. Paste the output into this thread.

Cheers,

~Mike

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