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- [Instructor] In a
typical wireless network

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the wireless access
point broadcasts an SSID,

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and that stands for
service set identifier.

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But the real name that
everybody uses for that

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is wireless network name.

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That's what the SSID is.

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And it's broadcast in the clear,

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meaning that anybody can
read those SSID packets

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that are sent over the airwaves.

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Normally, mobile devices will connect

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to the wireless access
point by way of SSID,

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whether they're smartphone
or tablets or laptops.

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When they search for wireless networks,

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by default they will see any
SS IDs that are being broadcast

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by wireless access points,
and then attempt to connect

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as long as they have the correct protocols

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and know the passphrase
or password to get in.

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But what if the SSID
is not being broadcast

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by the wireless access point?

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That would be known as
an SSID not found issue

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and with a typical operating system

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like Windows or Android, or say iPadOS

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those systems will not see
those wireless networks

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if the SSID is not being broadcast.

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So we need to troubleshoot.

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Let's take a look at a typical
wireless access point here.

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I'm looking at the wireless settings

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for the five gigahertz network.

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The wireless network name
here also known as the SSID

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is called Unknown_Network_5.

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And we can see here that it is enabled,

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the SSID broadcast is working,
it's check marked here.

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So if a client wanted to
search for wireless networks

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that client would find Unknown_Network_5

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but let's take a look at wireless 2.4.

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This is a wireless network

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on the 2.4 gigahertz frequency range.

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The wireless network name
is Unknown_Network_2.4,

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but in this case, the SSID
is not being broadcast.

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It's not check marked,
so it's not enabled.

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So a typical client
will not be able to see

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this wireless network when searching.

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So we have a couple options here.

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If we want the clients to connect,

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one, we could just check mark this

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and enable the SSID broadcast, or two,

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we could have those clients
connect manually to the SSID

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as long as they know the name.

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Let's show how to do that
on a Windows system now.

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I'll bring up a Windows 10 system,

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and we'll click on our
network icon down here

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in the notification area.

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And when we do we'll see
any wireless networks

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that are possibly available to us.

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And if we scroll down here
all the way to the bottom

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we'll see Hidden Network.

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Now you could have more
than one hidden network.

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In this case, there's
only one hidden network.

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So I'm gonna attempt to connect to it.

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That hidden network most
likely is the one that I have

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with the 2.4 gigahertz frequency range

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with the SSID disabled.

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So I'm gonna click on
that now, click Connect

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and then it says, enter the name

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or the SSID for the network, right?

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Well, if we look back here

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we'll see that's Unknown_Network_2.4.

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So that's the name I'm
going to enter in here

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and make sure it's typed
correctly and then click Next.

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And then you would need to make sure

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your system has the
right protocols running.

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In this case, it's WPA2 and
AES, which my system does.

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And then you also have
to know the security key,

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the password.

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So we'll type that in now and Next.

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And here it's talking
about host discovery.

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I'm going to say no to this

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so that no other hosts can see my system.

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And now it says Unknown_Network_2.4.

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It is connected, but there's
no internet for that currently,

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if we go to properties here

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we'll see it is called
Unknown_Network_2.4.

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We have a public profile

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which means that our PC is hidden.

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We chose that during the connection.

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It's Wi-Fi 4, 802.11

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because it's on that 2.4
gigahertz network band.

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It shows our link speed,
72 megabits per second

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and the IP address that we were given.

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So that's how you would manually connect

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to a wireless network that
is not broadcasting its SSID.

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But in most cases, the best solution

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is to simply have the
wireless access point

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broadcast the SSID.

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And the reason for that

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is because even if you
have this turned off

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wireless access points still
broadcast a lot of packets

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about themselves in the clear,

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meaning that anyone
can read those packets.

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So while it can be an
okay-security precaution,

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it usually just makes it more difficult

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for users to connect.

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So usually we would
just want to turn it on.

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So I'm gonna do a couple things here.

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First of all, I'm gonna
disconnect from this network.

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Click on my Wi-Fi networks here again.

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And you can see here now that
internet is actually connected

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before it said internet was not,

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it took a moment to get the
DNS and everything else,

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but I'm gonna disconnect
from that now, okay.

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So that is gone.

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And if you ever want to
remove any connectivity

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and any knowledge of that network

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you would do a forget on that network.

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So we could go to manage
known networks within Wi-Fi.

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And if you don't know
exactly how to get there

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we could right click
here on our network icon,

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go to Open Network & Internet Settings,

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go to Wi-Fi and then go
to Manage known networks.

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But usually if you're
working with a Wi-Fi network

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in Windows 10 or 11

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it will automatically bring
you to the Wi-Fi screen.

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So I'm gonna click on
Manage known networks

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and we see the unknown network 2.4

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that I connected to previously.

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I'll click on that and I'll say, Forget.

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We'll forget that all
together, close that Wi-Fi.

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And now let's jump over to
the wireless router again.

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And now I want to enable
that SSID broadcast.

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So we'll click on that now.

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We'll click Save.

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And for most devices you'll
have to reboot that router,

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SOHO router, wireless access
point, whatever it might be.

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So we'll click here to reboot,

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click on Reboot and we'll speed
through this as it restarts.

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Okay, that's complete.

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And I wanna log back in just to check

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and make sure that that wireless
network indeed is enabled

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and that the SSID is broadcasting.

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It is, it is check marked.

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So let's go back over to
the Windows 10 system.

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We'll click on our network icon here

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and here it is Unknown_Network_2.4.

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And now we could connect
to that, however we like,

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and whenever we like.

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So when dealing with
an SSID not found issue

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it means that the wireless access point

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is not broadcasting the SSID name,

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the wireless network name in the clear,

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and that means devices cannot connect.

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So you have those two options.

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You can either re-enable SSID broadcasting

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or connect from those devices manually

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as long as you know the exact
name of the wireless network.