Time
31 hours 29 minutes
Difficulty
Beginner
CEU/CPE
30

Video Description

Interference, Signal Strength and Bounce This lesson covers common problems and issues you might discover with wireless connectivity and how to correct them. Common issues include:

  • Interference
  • Signal Strength
  • Bounce

This lesson goes on to cover which steps can be taken to fix these issues such as moving a Wireless Access Point (WAP) to a higher point, and testing boundaries with software.

Video Transcription

00:04
Hi and welcome to Cyber Dad. I t
00:06
My name's Anthony and I'm your local subject matter expert here for Network Plus And today we're gonna be troubleshooting common wireless issues. So after we've said about Riley's access point, we're trying to maintain connective iti. What are some of the common symptoms and some of the common problems that we may see with our wireless connectivity? Well, one of our more common issues maybe interference
00:27
now interference can occur from
00:29
different objects in our environment may occur from other signals that are interfering with our signal. Other wireless access points, handheld phone our hands, handset phones, garage door openers, baby monitors, microwaves. A lot of different components can cause interference in our network.
00:47
Now, when we're looking at for interference in our network, when we're looking for interference on our devices,
00:52
we may see things like our signal going in and out. Or we may see intermittent connective ity or were watching a video. And then for a few seconds it'll stutter, and then we'll keep going, and then it'll stutter again and keep going or we're playing a game online and we're having some a few every once in a while, it'll just freeze up and it'll slow down. But then it'll be fine again.
01:11
Well, these may be indicators of different interference that's in our environment,
01:17
providing this causing interference between us and our wireless access point.
01:22
So what are some issue somewhat, or some steps that we can take to correct its this issue?
01:26
Well, we may move closer to our wireless access point. Moving closer to our wireless access point will may eliminate some interference because some of the things that are causing interference we've gotten between the our wireless access point and them. So those interference objects are no longer in between us
01:45
in our access point,
01:47
we can also move in closer to our rivals. Access Point also helps that the signal strength from our wireless access point can help mitigate some of those interference signals.
01:57
We also have the ability to move our wireless access point higher and in a more centralized location.
02:04
The higher up we get our wireless access point, the more it's able to send out signals that aren't hitting other objects that may cause interference. So we want to. We may want to have a roof mount for the white. We might wanna have a ceiling mount for about wireless access point.
02:19
We may want to move it to the middle of the house rather than the corner of the house or the middle of the office
02:23
rather than over in our network closet. And this may provide a better disperse signal and help prevent some of that interference.
02:32
We can also get a different intended for wireless access point if we have A If we have a wireless access point that is in a centralized location, we want to look for an Omni directional antenna that that pushes out the signal equal in equally in every direction. If we have a wireless access point in a corner and we're trying to angle it across an entire area that we're looking for
02:53
a uh,
02:53
we're looking for a unit directional antenna, which is going to push out the direction in a sink are the frequency in a single direction. So knowing our situation, knowing where our wireless access point is located in the direction in which the people are trying to connect to it, is our helps us to determine what type of antenna we might want to use
03:15
then we have our different frequencies. Now our frequencies are going to be our main frequency. Bands are going to be 2.4 versus five gigahertz on and within those frequencies we have different channels that we've talked about in a previous segment now are 2.4. Frequency is a very crowded frequency,
03:31
even if we may even be able to change the channel that were on
03:36
in our frequency. But it's still a very crowded frequency. There's a lot of devices that aren't even while is access points that use this frequency. We may want to consider moving over moving our channel or even moving into the five Giga Hertz frequency range, because the five Giga Hertz frequency range, even though it's going to provide us with less
03:53
less area that are wireless
03:55
access point pushes a signal to have a less. We have a lower range. We're going to be experiencing less interference because it's a less crowded frequency band.
04:06
Then we want to check for additional interference from using specialized software. We may be able to add install software on our computer that we can use in order to check for while other wireless access points are other sources of signal interference interference in our general area. So by using this software, we may be able to help
04:27
narrow down or pinpoint some sources of interference. Seo this, while is access point isn't configured for the right channel. Maybe I should move it over through this channel or try a different frequency band, and we'll be able to use that software to help identify those sources of interference.
04:42
And then, lastly, we have adding different while adding additional wireless access points By adding additional wireless access points, we may be able to extend the range and thus strengthen the signals that are being pushed out by are different points. So say we have one main wireless access point that we're trying to connect to from across the House,
05:00
and it's not able to connect. It's not able to connect with a very high
05:03
high rate of speed. There's a lot of interference between us and that wireless access point. We may want to set up a secondary wireless wireless access point that acts as a bridge that we connect that second point instead. That second wireless access point is closer to us than the 1st 1 thus providing less things in between us and the access point to cost potential interference.
05:24
Next up, we have our signal strength. Now, our signal strength, also known as the game that we put on our
05:30
on our antenna is going to be How far out are signal pushes and the strength of the signal as we get closer to the edges of our network
05:40
now, we'll typically want to modify our gain on our antenna, modify the amount of power that we're pushing out our signal with, so that our signal only stays within our home in our place of worker in our office. So we may want to modify this signal strength. It may be too high, in which case we want to go into administrative panel and turn down the gain
06:00
or maybe too low. And we may also want to try our administrative panel and see if we can turn the game up. If possible,
06:06
will want to test the boundaries of our wireless access points range the signal strength with special wireless software that will allow us to take our laptop moving around in office space, moving around home and see where the boundaries of our network network ISS. Using these boundaries, we can say Oh, I need to turn the gain up. I need to turn the game down.
06:27
I may need to install a second wireless access point
06:30
and we'll be able to use this software in order to find our limits for our wireless network.
06:35
We can also change the distance between us and our wireless access point. This is one of the most obvious solutions to solving signal strength issues. Distance between us and the wilds. Access point causes the signals to slowly dispersed slowly become Maur, have Maur interference and give us less signal strength. So
06:55
by moving closer to the device, we may help a limp. We may help remove some of that
07:00
move. Some of that low signal strength help increase our signal power by moving closer or moving the device closer to us when they wanna put it closer to us in a more centralized location so that were able to access it with a stronger signal.
07:13
Speaking of our device location, we may also want to look at a different antenna just like our talking about our antenna over it with our interference. If we have a device that in centralized location, pushing out a signal in the same equal in all directions. We wanna look at an Omni directional antenna
07:30
and a Nintendo, which is just going to be angled in one direction and pushing a signal
07:34
in a particular pattern just at us or just at another access point should be a unit, directional unit, directional antenna.
07:43
And then, lastly, we have 2.4 gigahertz up here because 2.4 gigahertz, even though it's a more crowded frequency, allows us to push a signal farther. So if we're not so much facing interference issues, but we're facing issues with our signal strength and our signal distance, we may want to consider looking at our frequency.
08:00
And if it's not already a 2.4 gigahertz, we may need to change it over to that or change it over
08:05
changing over so that we'll be able to get that increased frequency range and then next we have a signal bouncing. Now. Signal bouncing is when our signal hits a metal object or hits another object, and it scatters the signal. Now,
08:20
when we take a radio wave, radio waves when they hit metal objects or when they hit certain objects. Those objects act almost as reflectors. They hit that object, and parts of our signal want to reflect out. So we're like shining a laser laser light at a mirror. It's gonna want to reflect out. And
08:39
when those signals gets reflected out when we scatter that signal,
08:43
then we're not gonna be able to receive it as well. We may get some pieces of the pieces of the signal through. We still may be able to connect when we may have issues with connective ity because that signal's bouncing.
08:54
So in order to help mitigate this, we may want to move our wireless access point, put it up in a higher location, or we may want to modify the game. We may want to up up the amount of power were pushing through our antenna toe help to push out a stronger signal so it may be able to mitigate some of that signal bouncing.
09:11
We may also need to realize that we may just need to install another wireless access point because between if between us and the wireless access point, if we're inside a fully includes three foot steel Wall room between us and that wireless access point.
09:26
It's gonna be really hard for that signal to get to us because of the interference because of the bouncing off of the metal.
09:31
So we may need to install a different wireless access point in a different location between us and whatever was causing the signal bouncing.

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CompTIA Network+

This CompTIA Network+ certification training provides you with the knowledge to begin a career in network administration. This online course teaches the skills needed to create, configure, manage, and troubleshoot wireless and wired networks.

Instructed By

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Anthony Harris
Senior Systems Engineer at ZenPoint Solutions
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