Time
5 hours 33 minutes
Difficulty
Beginner
CEU/CPE
3

Video Description

Troubleshooting Wireless and Wired Connections Part 3 Now we dissect what happens when you get local connectivity error messages. We discuss what happens when connectivity to the Access Point fails, what settings need to be checked when using a wireless card such as its driver, what role security software plays in triggering local connectivity issues. We discuss issues causing slow or low speeds such as device configuration, malfunction or limitation, virus or malware using resources, if it's the wireless interface, an ISP issue or speed limitation, or something as simple as being out or range.

Video Transcription

00:04
So what about instead of getting the message? This is limited connectivity. We get a message. This is local connective ity. Well, local connectivity could be its couple different issues. Some of them are security related where we're not able to get out to the Internet. We can have. We have local access, so we will access the
00:21
the router or the wireless access point. But we can't go anywhere.
00:25
So with that local connectivity, we want to check our access point. We want to check the router when you want to check the wireless access point that we're connecting to and see if it's potentially a issue with the configurations or settings there. We wantto possibly check our software, our software and the access point security
00:43
and see if there's any particular security settings or security filter rings that may be blocking us or giving us that limited that local connectivity message.
00:51
We also wanted to check and see if we need to put in a different security key, or maybe even a different security encryption. If we're connecting violas lee to an access point on, see if that if that looked connectivity eyes because we are entering the correct credentials,
01:07
Uh, and they also because B, because of a router, are router access control list. We want to check and see if there's any access control limited on our router as faras who and which computers in which devices are allowed to get out. So we want to check that list and see if there's any filtering going on there
01:23
and then last thing we want to check and see our wireless car drivers in our local network interface card drivers. And maybe we need to roll back or reload or re install those drivers because they may be causing issues with with connecting and with that local connective ity message.
01:41
Next we have our slow network. Speeds now are slow. Network speeds could be anything, anywhere from our Internet service provider to our local computer. It may be on a network interface card, our cable or router malfunction, or it may just be that we're plugged into a network or we're plugged into a switch that doesn't support the speeds that we're used to
02:00
when we're talking about slow network speeds.
02:01
Generally, we're talking about your getting slower network speeds than usual. General slow, slow network can be anything from the cables that you're using to connect to your routers. It can be the router
02:15
router configurations, and it could be the router network interface card in the ports on Lee Support. Up to a certain speed,
02:23
it may be the network interface card on your computer. Only certain supports up to a certain speed. It may be a virus or malware on your computer that is, using up a lot of connective ity or a lot of network connectivity, so it's slowing down your network speeds. Internet Service Provider Issues When you get in, it's an intimate connection from your Internet service provider.
02:43
There's only a max speed that you can go out through that cable.
02:46
You may have the fastest infrastructure, the internals in in your division. You may have the top of the line fastest cabling and ports and network interface cards and switches and routers. But as soon as you hit that Internet service provider cable assume, is he at that point of demarcation
03:05
where the Internet service provider cable comes into your building,
03:07
that's going to be your limiting That's going to be a major limiting factor. You can't go faster. You can't. Your data can't travel faster than the Internet service provider will eyes giving you essentially through that cable
03:21
and maybe router settings there, maybe settings as far as configurations on your on the network interface card on your router. You may want to check the duplex or slats are versus half duplex settings on your router on. Make sure that they're not set to say half duplex
03:39
rather than full duplex or on a negotiate,
03:43
because this could slow down your network. Um, you may also have wireless interference If you're connecting wirelessly, any wireless interference or any issues with your wireless connectivity or maybe on the edge of your wireless network will give you some slow network speeds. You you may even be
03:59
in the same room as your wireless router. But if there's 50 microwaves in between you and your wireless router,
04:04
which is probably not too good for your health, either you're going to have some issues with your slow network speeds because of all that interference.
04:14
Now, lastly, we have our slow R F signal. Now R F stands for radio frequency and radio frequencies are going to be what we used to connect from our wireless network interface card to our outer. Now we may be out of range or on the very edge of the range of our wireless router.
04:31
So if we're able to, we may want to go into our wireless router and check and see if we can turn up the power.
04:38
If we can boost the power being pushed out by a wireless so that it can extend its range. If it's at the max of its range, we may need to move in closer or we may need to consider. Adding in a wireless wireless booster may add another point in between us and the wireless router in order to boost the network.
04:55
Then we may be having some driver issues that maybe some driver problems with our wireless card
05:00
that's causing this low radio frequency signal like we talked about a second ago. We may be having wireless interference between us and the router there, especially depending on our routers. Router frequency.
05:15
They're 2.4 gigahertz is a very is the most common frequency you'll see why wireless router set on for small homes and offices. A 2.4 gigahertz is a very crowded frequency There's going to be things like hand held phones that are on that same frequency. There's gonna be garage door openers on that same frequency. There's gonna be microwaves
05:34
that are going to interfere with that same frequency.
05:36
So we need to be aware of those possible interference sources and, if possible, maybe move that that wireless phone that we have sitting right next to our laptop or that baby monitor that we have sitting right next to our laptop or what, right next to our wireless access point that may be causing additional interference.
05:58
And then wireless antenna settings will also affect low radio frequency. Low radio frequency set signal. We may have a a uni directional signal. We may have a parabolic antenna that Onley focuses in one direction.
06:16
If we don't have adjust it adjusted correctly, or we don't have it pointing in the right direction.
06:20
We're gonna get a low signal. We may have an Omni directional antenna that spreads out its signal in every direction, but it's going to be less concentrated than if we had a parabolic that we wanted to focus directly at where we need it on, and then we have router settings in frequency settings
06:39
that are going to sort of max out.
06:42
What type of signal our router can push out
06:46
our router settings and our frequency settings. Whether our router wireless type is our A B G or in will dictate our max speeds as well as our max distance on our radio frequency signals. So we need to make sure that depending on what frequency we're going to use 2.45 gigahertz
07:04
as well as what wireless type of router and network interface card we have,
07:09
we need to adjust how far away we stay from our wireless router or, if we add in additional points, we add an additional boost points for a wireless signal so that we don't have that low signal and don't have those slow speeds.

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Instructed By

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Anthony Harris
Senior Systems Engineer at ZenPoint Solutions
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