Weird Networking/Router Problem [SOLVED]

This problem is so weird that... I feel no one will believe until someone sees it for real ...I feel like a episode of Networking HOUSE MD.... so here goes

I have LAN using Netgear Router for my Small Office.

I have 2 New Computer with WinXP SP3 [Connected Via Ethernet Cable] and a Laptop with WinXP [No Service Pack] [Connected Via Ethernet Cable].

Now LAN works beautifully. No problem with that.


The Problem starts ONLY when I connect the LAPTOP to the Router the internet stops working. Without THIS laptop connected, The internet works fine, between all the computers.....[added 2 more comp just to test and it works fine].

Once the Internet stops working I reset the router, the internet starts working for 5 mins and stops. BUT THE LAN CONTINUES TO WORK THROUGHOUT !

The is what I have tried so far.

1) Re-installed The OS of the LAPTOP
2) Removed the 2 Computers and connect only the Laptop to the router. And Internet works flawlessly. So problem can't be with the Laptop Network card.
3) Got my friends Router [same model Version 6] still the same problem.

I used to use this LAPTOP with the same router and a old comp without any problem. The problem started when I got the 2 new systems.

The problem occurs even when I connect the laptop with a wireless Network card.

This has got to point that I am obsessed as to why it isn't working !!!! :fou:

All symptoms looks like a conflict but what that conflict could be ?

ANY HELP appreciated... so that I can sleep again !
3 answers Last reply
More about weird networking router problem solved
  1. Have you checked the MAC addresses?
  2. Thanks for the reply but MAC address was not the problem....

    Turns out the problem was a maleware called unwise_.exe

    I deleted it using MBAM !
  3. Why Not update your Laptop to the newest Service Pack?
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