Wireless Signal problems/degradation

Posted on 2005-05-02
Last Modified: 2010-08-05
Okay... I have a system setup with D-Link Wireless Router and two computers wired to that router.  I have a laptop wireless connected to the router.  The distance between the wireless router and the laptop is about 40 feet with a concrete wall separating them.  Also, between the laptop and the router I have a D-Link Range Expander.  I am not using WEP.  I am using MAC filtering.  The Dell laptop has a built-in wireless card and is the only hardware component that doesn't match the other D-Link hardware.  I cannot get a consistent high quality wireless signal to the laptop.  It is strong than weak.  Sometimes the signal is so week it seems as if I am using dial-up on the Internet.  Any suggestions?
Question by:Roger_Doger
    LVL 87

    Expert Comment

    Where did you put the range expander? Is it on the laptop side of the wall or in the other side? Wireless range normally is only good if the two points are in line of sight. A wall immensly decreases the signal. If you have direct line of sight the range can be anywhere between 300 and 800 m. A wall with iron inside usually completely cuts off the signal, even if the distance is only 5 m! You might be able to improve the signal by testing different locations for the expander.
    LVL 5

    Accepted Solution

    A signal that is strong and then weak would discount the wall as being the cause of 'interference'.
    You might have some other apparatus in the vicinity broadcasting on the same frequency so I'd try changing channels. Maybe there's a hands-free phone nearby? I would certainly consider external sources of interference as being a prime suspect for your problems.
    My experience with d-link wireless routers has been very poor. I have a D 524 which only works if no encryption is used. Range is good through 3 walls and at about 60 ft range, the signal is good enough. With encryption on, it won't connect at a couple of feet (not a key error either).

    Featured Post

    Looking for New Ways to Advertise?

    Engage with tech pros in our community with native advertising, as a Vendor Expert, and more.

    Join & Write a Comment

    Last Mile Wireless The term last mile wireless is a bit deceptive as it can be much more than a mile. It is also called WiMax and 802.16. It generally refers to relatively short distance point-to-point / point-to-multipoint secure wireless connecti…
    In the modern office, employees tend to move around the workplace a lot more freely. Conferences, collaborative groups, flexible seating and working from home require a new level of mobility. Technology has not only changed the behavior and the expe…
    Excel styles will make formatting consistent and let you apply and change formatting faster. In this tutorial, you'll learn how to use Excel's built-in styles, how to modify styles, and how to create your own. You'll also learn how to use your custo…
    This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor ( If you're looking for how to monitor bandwidth using netflow or packet s…

    729 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    19 Experts available now in Live!

    Get 1:1 Help Now