wifi detection issue

arpan11 · Mar 15, 2013

my dell laptop wifi is detecting less signals...
i mean to say another laptop of same model and company detect seven to eight networks on its wifi but at same place my laptop wifi is not detecting any signal ...
and for hotspot kept next to my laptop i m getting two three signals but on another laptop is is showing four two five tower
i think my wifi strenghth has become weaker... plz provide me a solution

smorizio · Mar 15, 2013

take the battery and power off the laptop..flip it over and open the bottom of the case where the wifi card is connected.check that the cable wire for the ant are connected and reseat the card. if the card still having issues i look into replacing it. (before you replace it see the chipset vendor of the wifi card and try there newest drivers to see if they work better then dells).

Saga Lout · Mar 15, 2013

It's also worth checking the configuration to check that your wireless card i set to roam around all thirteen channels. If it's only set to a specific channel, it will only see the networks that are broadcasting on that channel at that time.

photonboy · Mar 15, 2013

It sounds like the wi-fi device is defective as the first guy implies or has a loose antennae.

If it's possible you could try SWITCHING them between laptops but I don't think that's easy to do.

If you absolutely need a better wi-fi receiver you could buy a USB version, though again these vary in quality.

mcnumpty23 · Mar 15, 2013

could also check the wifi card properties in device manager

some have power saving options which may lower performance

could also uninstall it in device manager and scan for hardware to re-install it to see if it makes any difference

photonboy · Mar 16, 2013

mcnumpty23 :

I think you can change the POWER PROFILE but that this only affects transmission, not reception. I find it unlikely that the device is half-broken (works but degraded). It's hard to troubleshoot over the internet though.

Troubleshooting:
*Burn an UBUNTU LIVE disc and try booting each machine with it then setup and test the Wi-Fi. Since the software situation would be IDENTICAL this can help troubleshooting:
a) If both laptops perform the SAME with Ubuntu then you have a software/setting issue in Windows to correct
b) If both laptops are still DIFFERENT then it's a hardware issue. In this case either the Wi-Fi component is either performing properly (may not be the same quality as the other one) or its defective (damage, grounded, or an antennae is unhooked).

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