Problem with WLAN component of laptop(Perhaps the cables)

PerpetualBliss

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Jan 29, 2015
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This past summer I bought an Acer Laptop. Some of my laptop's specs can be found below:

Laptop Model: Acer Aspire V5-573G-9491
Nvidia GeForce GT 720M with 2 GB Dedicated VRAM
Windows 8 G4-bit
6 GB DDR3 Memory
500 GB HDD
Acer Nplify 802.11a/g/n + BT 4.0
4-cell Li-Polymer battery
Intel Inside Core i7

Recently I have noticed something odd about my laptop when it dealt with its wireless connection. I noticed that the internet connection on my laptop would start changing frequently, changing as in: websites taking longer than normal to load, or not loading at all, and online games receiving random spikes of lag or disconnecting entirely (it started happening about a week ago).

I had a suspicion that the problem was probably due to my router since I've had it for a very long time now. I did a few tests with other wireless devices around my house (a few other laptops, my iPad) but I didn't notice that they also suffered from the weird connection issues that my own laptop was having.

It was only a few days ago that I started suspecting that it was perhaps my own laptop that had an issue. I noticed that when I had my laptop screen open around 45 degrees from it's closing state that it would receive a better signal than when I kept the screen open around 90 degrees or more. Not only that but every time I would start opening it more than 50 degrees I would hear a clicking sound, almost as if wires were coming undone, from the hinge located at the bottom right of my laptop's screen.

At this point I was starting to suspect that perhaps some cables were torn somewhere on my laptop's screen or at the bottom right hinge. Just an hour ago I decided to open my laptop from the bottom to see if any cables were torn or damaged, but I found none. When I opened my laptop I located the WLAN component and found two cables on it, one that read MAIN and another that read AUX (which I interpreted as auxilary). I assumed that these were the cables that controlled whether my computer searched for a wireless signal. I saw that they led directly to hinges of my laptop and up the sides of my laptop's screen. I decided to test if perhaps one of them was damaged or torn by unplugging one and leaving the other plugged in.

I began by unplugging the cable that led to MAIN and left the other that led to AUX connected. After turning my laptop on I saw that I had lost two bars of connection from the 5 that I normally get (which I figured it did so because the component was running on the AUX portion) and after opening a few webpages and trying out a few games I noticed my internet connection was not acting as chaotically anymore. I then did the opposite and left the MAIN cable connected and disconnected the AUX cable. Once I did this I noticed that my internet connection started behaving exactly like it had prior to disconnecting any cables.

So I hypothesized that perhaps the MAIN cable that leads to the WLAN component is damaged. I'm not quite sure if this is true or not, perhaps there is another problem that I don't know of? I use my laptop quite a lot and I'd hate to lose my internet connection entirely just because of a few faulty wires(if that is the case). I'm not quite sure if I'm correct or not, I would appreciate if someone could help me figure this out. If indeed the cables are torn, what should I do? Should I try replacing them myself or should I take my computer to an expert or a store to get it fixed? Again, any help to solve my problem is greatly appreciated and if you need any more info about my computer's specs, I'd be happy to provide it. Thanks, and apologies for the long post.
 
Solution


I think BBrent is on to it. By disconnecting the Main, you go on to Aux which runs on 5GHz. This is why your signal decreases in strength but the quality improves.

You can do the same in Software by going into your Device Properties and setting the preferred band to 5GHz. This is a bit different on each device, but Centrino wi-fi would be:
Open the...

BBrent

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Jan 13, 2015
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Usually two antennas in a laptop are 2.4 GHz and the other antenna is 5 GHz. I take it your router is wireless N as well? How far away from your router are you any walls? 5 GHz tends to be problematic the further away and more walls between you and the router. Maybe your disconnecting your 5 GHz antenna and running on 2.4 GHz and that's why your seeing a more stable connection.
 

adamwinn

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Dec 31, 2007
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I think BBrent is on to it. By disconnecting the Main, you go on to Aux which runs on 5GHz. This is why your signal decreases in strength but the quality improves.

You can do the same in Software by going into your Device Properties and setting the preferred band to 5GHz. This is a bit different on each device, but Centrino wi-fi would be:
Open the "Control Panel" - "System" - "Device Manager".
Then under "Network Adapters", open the properties for the "Intel Centrino Advanced-N 6205".
In the register card "Advanced" set the setting "preferred band" to "3. prefer 5,2-GHz band".

Downloading inSSIDer free will let you confirm visually the signal quality (link score), how many other networks there are, and which band you are connected to:
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=inssider%20free
 
Solution

PerpetualBliss

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Jan 29, 2015
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4,510
Ah, thanks for the help BBrent and adamwinn. Changing the preferred band did in fact help stabilize my internet signal. I have not had problems with the internet disconnecting while I'm browsing or gaming. Again, thanks for the help.
 

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