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9.0

Problems with Wireless Internet Access

Asked by JRT55 in Networking Hardware, Wireless Network Cards & Adapters

Tags: LANs, wireless

We have a home LAN.  There are 3 laptops and a desktop PC.  Two of the laptops run Vista, the other 2 units run XP SP3.  The Vista laptops connect wirelessly, the others via Ethernet cable.  The modem and router are both by D-Link (I dont have the model numbers with me right now, but this shouldnt be relevant to the problem Im about to describe).

Access to the internet had operated without a hitch for some 2 years or so.  It didnt matter how many (or which particular) PCs were accessing the Net, everyone had unfettered access.  But in more recent times it appears that when the laptop that is connected via Ethernet cable is on line, the two Vista wireless laptops cannot connect.

The obvious fix of turning off both the ADSL2+ modem and the wireless router has been employed, with temporary success.  Ive also gone into the firmware of the modem (via http://192.168.1.0, or similar) and done a full reset, but the problem persists.

One other relevant fact  the wireless PCs still recognise the home network, but not the external one.  Weve also checked the Ethernet cable connection (physically) between the modem and wireless router.  The cable seems in as good a condition as when it was bought, and the connection to the two devices seems well made.  It seems to me that this points to a modem issue  yet how do you then explain the fact that the two Ethernet-connected PCs continue to enjoy internet access?

Im no comms expert so Ive run out of ideas for troubleshooting this one.  Can anyone suggest a likely cause  or logical approach to solving this?  Its causing more than just mere inconvenience, with university students at home and important assignment deadlines to be met.

Is it possible for modems and routers to somehow deteriorate?  Are there ways to boost the wireless signal?  Is there such a thing as a congestion factor?

Any help would be appreciated.  Thanks.
[+][-]05/31/09 06:00 PM, ID: 24514556Accepted Solution

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About this solution

Zones: Networking Hardware, Wireless Network Cards & Adapters
Tags: LANs, wireless
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Solution Provided By: FirstDownMage
Participating Experts: 1
Solution Grade: B
 
[+][-]06/09/09 09:32 AM, ID: 24582829Author Comment

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[+][-]06/28/09 10:00 PM, ID: 24733713Author Comment

Often, when Experts are collaborating with members who have asked questions, they will request additional information about the problem. Askers respond with an author comment like this one.

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