How To Troubleshoot Weak Wireless Connections

A few months ago, our dog chewed through the cables for our satellite TV. That’s her in the picture. She also chewed $300 worth of computer cables, but that’s not the point. A few weeks ago, we got sick of not having television, so we bought a D-Link DivX Connected device that allows us to play media content from our laptops on our big TV in high definition wirelessly. It’s pretty cool.

The problem is that our wireless connection would keep dropping for no apparent reason. I would reset the router, reset the wireless adapter on the laptop and reset the DivX device. That would work for awhile and then it would happen again. So I fired up the Xirrus Wireless Wi-Fi Inspector that I wrote about awhile back, and went through troubleshooting my weak wireless connection through that. Turns out I forgot that a lot of my neighbours have the same crappy modem/router combination my ISP assigned me and they all like to talk on the same channel at the same time. Now, I would change the channel on my router manually to one that wasn’t being used.

But the weak wireless connection problem still continues. Sometime I forget that I am a college-trained computer technician. Once I recalled that little tidbit, I started digging into how I could manipulate my wireless adapter to work better, hopefully.

Keep in mind that my wireless adapter is a an Intel device. Yours may differ, however the principles should be the same.

I opened up my Intel wireless adapter by clicking on the Start button, then the Connect To link and then the Wireless Network Connection link. Up pops the Wireless Connection Status window.

Then I clicked on the Properties button. Voila! Here’s the Wireless Network Connections Properties window. Now we’re getting to the meat and potatoes, or tofurkey and potatoes for our vegetarian friends.

Clicking on the Configure button took me to the Intel Pro Wireless 2915ABG Network Connection Properties window. Try to say that 3 times fast!

Notice that I highlighted the Intel Throughput Enhancement option in the Property select box. The default value of this is Disabled. When it’s disabled, the adapter uses a packet burst mode known as Wi-Fi Multimedia mode (WMM). This mode is ideal when you use your computer in a wireless network with other computers doing ordinary uploading or downloading of music, video, text and any other type of file. Hence the name – multimedia.

When the Intel Throughput Enhancement is enabled, this packet burst method is meant more for streaming video and audio. Hmmm, I’m trying to stream audio and video to my DivX Connected device! So, I enabled it. Now, if you enable it, and there are other computers using the same router as yours, you will be hogging the bandwidth! Make sure that’s okay with your other users. If you’re the Dad, like me, you just go ahead and do it. After you get Mom’s permission, of course.

Then I checked on the Power Management mode. Mine was defaulted to the Lowest end of the slider. Well, that’s great if I were using my laptop without it always being plugged in. However, I always have it plugged in, so power management is not an issue. By setting it to maximum, I’ll get higher performance! This should assist in noisy environments as well. I don’t mean kids and dogs, I mean lots of other Wi-Fi signals, like the ones from my neighbours. Darned noisy neighbours!

I scrolled down a bit further and found the property Roaming Aggressiveness. Mine was set to be as aggressive as possible. What that means is that if my router has a weaker wireless connection than another signal in the area, the adapter will try to jump to that. For me, that means it tries to connect to a neighbour with a stronger signal. Well, I don’t want that so I dialed it down to lowest.

The last thing I did was to check the Wireless Mode property. Originally, it was set to 802.11B and 802.11G mode. I don’t think changing this will make that significant a difference, but since my router, adapter and DivX device are all capable of 802.11G mode, I saw no sense in leaving it mixed. So I changed it to that exclusively.

Did it work? So far, so good! Unless the microwave is on, the connection hasn’t been dropped between my laptop and the router. Sometimes it gets dropped between the router and the DivX Connected device… but that’s another article!

How do you usually troubleshoot dropped wireless connections? Do you have a solution of your own? Share them with us in the comments!