Encryption Type, SSID Mismatch and Incorrect Switch Placement

Video Activity

Encryption Type, SSID Mismatch and Incorrect Switch Placement This lesson discusses the following issues when trouble shooting problems within wireless networks: Encryption type: Right key, wrong encryption SSID Mismatch: SSID broadcast off Incorrect Switch placement: Computer might be turned off for wireless

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Time
31 hours 29 minutes
Difficulty
Beginner
CEU/CPE
30
Video Description

Encryption Type, SSID Mismatch and Incorrect Switch Placement This lesson discusses the following issues when trouble shooting problems within wireless networks:

  • Encryption type: Right key, wrong encryption
  • SSID Mismatch: SSID broadcast off
  • Incorrect Switch placement: Computer might be turned off for wireless
Video Transcription
00:04
our last couple steps that we want to take and we want to troubleshoot with our wireless access points are going to be our encryption type RS s I. D match match and are incorrect. Switch placement
00:14
now with our encryption type. This is a situation where we have a wireless network that is protected with encryption, and we've entered in the correct key within in the correct password. But we don't we have the wrong encryption set. It's the wrong encryption that's trying to negotiate. Between our device and the wireless router
00:34
are the wireless device
00:36
Now. Typically, our computer and the wireless access point are goingto ought to negotiate an encryption. So they're going. Our wireless access point is going to say, Oh yeah, I'm a Web encryption or I'm a W p A or W P A. To encryption and using that our computer will auto negotiate.
00:53
But sometimes this doesn't work Sometimes that auto negotiation fails for whatever reason.
00:58
Or maybe it's set that we need to enter in more information on our client side to be able to connect. Whatever the case, we may be able to, we may get a message such as limited or no connective ity where our device thinks that it's entered in a key and that is connected to the router are connected to the wilds access point. But it's really not
01:15
having the wrong encryption type
01:19
is just is just as bad as having the wrong key or the wrong password is not gonna get us anywhere. It's like it's like taking It's like taking the right key for your house but trying it in your car. It's not gonna unlock the door, even though it's the right key. It's not the right lock. You're not opening the right lock,
01:38
so we may need to manually set what encryption tight we're using with our router. This will talk more about encryption types in our security module, but are different Are three
01:48
main security types for wireless protection? Are WEP E B P. A. In W. P. A. To we'll need to know what type of encryption were using on our router in order to set which one we're trying to connect to. And if you're still using Web
02:01
on your wireless access point,
02:05
you want to change that. Webb is a insecure standard for wireless encryption. It has been broken. It has theirs
02:15
Highland hundreds, hundreds of tutorials out on the Internet and in books about how to easily bypass Web encryption. And with just a little bit of Googling, someone can just as easily bypassed wept encryption as they can, having no encryption on your wireless network at all.
02:30
So W. P. A. Is a little middle man is a bit of a middle man,
02:35
but the standard for setting up encryption setting up protection on your wireless access point would be a W p A. To encryption set rather than uh, and then a Web would be almost as bad as not having any. But so we want to migrate away from weapons, and it's possible, but nonetheless
02:53
encryption type. It's critical to have the our computer trying to negotiate with the router with the correct are with the wilds access point with the correct encryption type so that it can connect and then they can have that Vulcan activity.
03:07
And then we have s I d mismatch. Now we talked about how RS s I d. Our service set identify air is what actually identifies our device. What actually identifies our wireless access point? It's sort of the name of the wireless access point that sometimes we can see when we click on
03:24
available wireless devices and we'll see the different SS ideas will see the different names
03:30
now RS s I. D. We want to change from our default, but typically will want to try and disable our society broadcast as well. We don't want just anybody to be able to see that our wireless network is out there. It's just it's information that if there if it's not a guest network, if they don't have to connect to it, they don't necessarily need to know it.
03:46
So by disabling, that s I d broadcast that provides us with a little bit of an additional layer of security.
03:52
It's not a fail safe method. It's nowhere near having an encryption key, but it's an additional layer that we may want to tack on.
04:01
Now, if we have s I d broadcast turned off, someone connecting to our network has to enter our SS. I'd be manually we have to go to our wireless networks. We have to set up. We have to, uh, advanced search for a wireless network. We have to type in an SS ID and our encryption key. If we have an encryption key set up
04:18
now, when we type in RS s i d key, it has r S S I d name. It has to match exactly
04:27
what are S s ideas. If it's a single character off, if it's not correct, we won't be able to connect even if our key is correct. So Rs s i d will have to match exactly. Just like our wireless encryption key will just like our past phrase will. So make sure that if we have s i d broadcast off. It's especially important
04:46
to note down what RS s I d is so we can connect to our wireless network.
04:51
And then lastly, we have incorrect switch placement. Now, when we're talking about incorrect switch places, we can we can hit two topics here. We can talk about incorrect
05:01
switch device placement like a switch in our network that we use for networking. And then we have switches like light switch, except it's one on our computer that we turn on and off.
05:14
Now, with incorrect switch placement on our network, we need to make sure that if we're able to connect to our wireless access point, but we still are unable to connect to the Internet. Then there may be an incorrect switch configuration on our network. We may have the wrong topology on our network, and it may not be routing out properly. So we may have a ah,
05:32
right. We may have our router
05:34
connected to our switch connected to our wireless access point. And our switch has incorrect villian settings or its incorrectly moving the data between our router and our wireless access point. So that would be incorrect. Switch placement. They're more likely, However,
05:51
what you're going to encounter is incorrect. Physical switch placement.
05:57
Practically all laptops that air manufactured now with network interface cards have what are called physical hardware switches for their wireless network interface card. This allows you to turn off your wireless network interface card for whatever reason, say you get on an airplane and they tell you need to turn it off, but you wouldn't keep you're gonna keep your
06:15
laptop on. You can turn off that hardware switch
06:18
or you wanna help mitigate attacks. Whatever the case may be. Now these kids, these switches may come in the form of function keys. Or you have to hold the FN key and then press what looks like a little radio tower to turn the wireless switch on or off. Or maybe an actual physical switch on the front or on the side or the back
06:38
of your laptop.
06:39
So make sure that if you are trying to connect your wireless network and if you are trying to connect and you don't even see the location, that indicates that you have the ability to connect to a wireless network. If you try to click on the little the little bars and they're not even there,
06:58
then there's a good chance that your wireless switch is turned off on your laptop.
07:02
So will want to check our wireless switch, the physical switch. And we also want to go into the computers networked properties and go into the adapter settings and make sure that the actual wireless adapter isn't disabled. So we need to check the physical switch and we need to check our adapter settings to make sure that our adaptors not disabled.
07:20
So thank you for joining us here today on cyber readout I t. Today. We talked about troubleshooting common wireless problems and the different symptoms and the different steps that we may we need to take in order to troubleshoot these issues. We talked about everything from having our wireless switch on our actual physical device turned off
07:38
to having interference between us and our wireless access point.
07:43
We talked about different encryption keys, and we talked about our different standards for wireless a BG or in and a lot of other difference factors that play into not being able to connect to our wireless access point or not being able to connect to the Internet.
07:59
So hopefully you'll be able to take thes. You'll be able to troubleshoot a little bit better on your wireless networks.
08:03
You'll be able to identify some causes and some issues that may be causing an inability to connect to your wireless access point. And most of all, we hope to see you here next time on cyber dot i t
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