How to increase the wifi signal that my laptop can detect?

December 19, 2014 at 01:17:32
Specs: Windows 7, Intel core i5 2.5GHz / 4 gb
A few days ago, my laptop can detect our wifi with excellent signal in my room. but then recently i couldnt detect any wifi. but then after trying to solve the problem, i realized that i just need to be in the same room or as close aspossible to our wifi. My brothers laptop have excellent signal in our room so i figured that this is not a problem on our wifi. so can anyone tell me why my laptop become like this?

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December 19, 2014 at 06:04:25
There are some occasions when the wifi adapter needs a little attention.

Typically - and in no particular order...

Reboot the router (do NOT reset it).

Double check what channel your router is radiating on; and if your wifi is set to auto (it hunts for and uses whichever channel it finds the router is using - if it can) - or manually to the same channel as the router.

Check in Device Manager to see if there are yellow exclamation marks against the wifi adapter (in the Network adapter branch)

Upgrade the driver for the wifi adapter.

Maybe even "uninstall it and then re-install; and allow windows to check for an updated driver.

What make/model number wifi adapter is in your laptop?

Have you installed anything about the time the system seemed to degrade re' wifi?

Have you tried a restore point?

The last two ideas are really not very likely of any impact if you can't actually detect the signal in strength..

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December 19, 2014 at 06:52:46
Hey, thanks for the reply.

Ok,since other devices here are working perfectly fine.I dont think I need to play around with the settings of my router. ( I checked it was in Auto).

I already tried upgrading my wifi adapter driver and it says it is the latest. I also tried uninstalling it and scanned for changes, and it automatically installed.

My wifi adapter is an Intel Centrino Wireless-N 2230.

I also tried system restore.

I dont think I have installed anything within the past few days that may have caused this. just my usual routine of browsing and playing games.

Could it be that my laptop became like this after receiving a shock? I think I may have slammed the lid a bit forcefully.

message edited by awwyhe

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December 19, 2014 at 10:34:34
mmm Possibly you may have dislodged the wifi adapter within its socket/housing inside the laptop. If you can locate where the adapter is installed (and often there is a removable cover over that module) try removing the module; then clean its contacts with a soft pencil eraser; clean of any debris with a lintless cloth or similar; re-insert it, then remove again and re-insert afresh.

Power up and see if any improvement?

When you are removing the module/adapter - and equally whenever going inside the laptop innards... - remove all power first - battery included.

It may be that the connection to aerial has also shifted slightly; the aerial is often within the lid assembly I think? Either the adapter or aerial with a less than perfect connection could produce some of the symptoms you describe.

Make and model of laptop is useful here as well; as that way between you and the rest of use here it may be possible to locate a full (service style) manual for it; at the least discover (clearly) how to access the wifi adapter and even the aerial within the lid?

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Related Solutions

December 27, 2014 at 09:40:09
Hey, sorry for the long reply. I have managed to disassemble my laptop and found the wifi adapter as well as the aerial in the lid assembly. I tried taking out the card and putting it back in firmly and tightened the screw. as for the aerial after finding it, I didn't know what to do. sadly, there was no improvements.

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December 27, 2014 at 10:52:42
I seem to recall the aerial (on many laptops) is within the lid assembly,and there is ribbon style cable from there to the main board. I'm not sure if there is plug connector within the lid itself or not... If one can find/verify any/all connections between the aerial and adapter/main-board etc. it would be useful?

I have known of the occasional wifi adapter simply decide to die a death (as they might say in movie-land; though how else does something die?) It might pay to have a hunt on Intel's site for the adapter and see if they offer any thoughts; not the least any way to check/test it out? Usually it has ben a standard desktop/tower add-in card though. But of course a laptop one could equally go down..?

A long shot... is it actually a router issue (and I sympathise with the reluctance to reset it..)? Have you tried using the laptop with wifi elsewhere where the signal is reasonably strong (wifi cafes, friends systems)? Somewhere where you might expect a normal connection to be achieved similar to your own home/room?

You might try rebooting the router (likely you already have?); even resetting it - bearing in mind a reset will mean you have to re-establish wifi options afresh (via a cat-5/ethernet connection). Any settings you have changed (made "your own") would be good to make notes of before any reset routine.

This is not disregarding that your brother's laptop is OK in your room... His system may be more sensitive than yours in that regard; and more able to connect even with a weak(er) signal present?

It may be possible to acquire a copy of the service manual for your laptop which may help determine what connectors are in the aerial path - and where they are? What exact model Sony/Vaio is the laptop; there being more than a few...?

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