If we literally translate the meaning of this abbreviation, then it means - Service Set Identifier. That is identifier online service. With it, the user can find out the name of a particular service, its location and other necessary data. For example, such a function will be useful when connection to an unknown wireless access point that is installed, or there is no password. When you turn on the adapter, the system recognizes them and displays all the necessary information.
If ssid is hidden from foreign devices, then its system won't detect. In simpler terms, the software will not be able to find the network and it will be impossible to connect to it.
If the user creates a similar point, then it will be necessary find out in advance Service Set Identifier of the router through which the wireless connection will be distributed.
So, the network SSID for Wi-Fi in Android is needed in order to connect to the access point. Users can set absolutely any name for their network. This is done in router parameters, in the section " Wireless setup" There should not be any problems with this action, since everything is very simple and clear. But how to get the Service Set Identifier of a connection? This will be discussed below.
What is multi ssid mode
Some routers capable of distributing wireless data in multi ssid mode. That is, the router can broadcast up to four Wi-Fi channels to which various gadgets with the appropriate module can connect. The main feature of this mode is the ability to assign own identifier vlan to a specific Wi-Fi network. Thus, the connection source can operate at different access points with different types of access and functionality.
In order to activate this mode necessary:
How to find and connect to a hidden Wi-Fi network
In order to increase the security of an out-of-breed connection (for example, to prevent Wi-Fi from being hacked), you can hide your point access and it will not be detected by devices with a built-in module. But, you should remember that such protection can complicate your life, since each time the connection will not be carried out automatically, but manually, by entering all the required data.
So, quite often users hide their wireless networks and in order to find them you need to use these instructions:
In order for the connection to be set up, you must correctly enter all the data that you can see on the bottom of the router (service sticker). If an error is made, the connection will not be established.
With the advent of wireless technologies for creating and connecting to virtual networks, many users are faced with the concept of a network SSID. Not everyone knows what this is. In the meantime, there is nothing complicated in understanding this term. Below we will discuss what the SSID of a WiFi network is, and also show how you can find out this parameter and change it.
SSID networks: what is it?
So, from the point of view of computer technology, each wireless network should be detected when trying to connect in some simple way. For this purpose, the concept of the network SSID parameter was introduced. What is this? In its broadest sense, an SSID is a unique identifier for a network that distinguishes it from all others; in other words, it is the name or name of the VPN.
Thus, when trying to search for a network and connect to it, the user does not need to rummage through any digital data or identify a possible access point. It is enough to know the network name (SSID) and password to access it.
What is the WiFi network SSID and how to change this setting
Typically, the value of the network identifier (name) is set initially when creating a wireless connection. Basic settings are made on By default, this may be the model number or brand of equipment, but for the convenience of identifying the network, a custom name is specified.
This is done in the settings section of the router, which is responsible for the wireless connection. To set a name or change it, just find an item like Wireless Network Name or SSID, where you indicate the desired name. If the user wants to avoid security problems, it is better not to use some personal data for this parameter, which may attract unnecessary attention.
Tools for viewing available networks
Now networks. To do this, when the Wi-Fi adapter is turned on, pay attention to the wireless connection icon in the system tray.
Left clicking on it brings up a pop-up window in which all available networks will be displayed.
To check network activity, use the ncpa.cpl command, which is entered in the Run console, and then look at the connection status. If it is inactive, you need to select the enable option from the right-click menu. You can also see all connections in the network management section, where you select the option to change adapter properties. The Wi-Fi module is turned on either by special buttons on the laptop panel, or by combining the Fn key with some other key (usually these are the function buttons F1-F12, but there may be exceptions).
With mobile devices it’s even easier. It is enough to turn on the connection, and then select the desired network from the list, and then enter the access password, if one is provided.
An advanced user can extract more information using sniffers. With their help, you can view the router's MAC address, see hidden networks, find out information about the communication channel, signal strength, number of currently connected subscribers, etc.
How to hide the network SSID?
In connection with the above, let's look at another situation in relation to the network SSID. What this is is already clear. Now a few words about how you can hide the name of a network so that it does not appear in the list of available connections.
The easiest way to do this is to find a special item with a line to hide the SSID (Hide SSID or something like that). If you later need to connect to a hidden network, you should create a new connection in the wireless network management section and create a profile manually. After this, you will need to enter the network SSID, set the security and encryption types, and also use the security key (password) that was specified in the router settings at the initial stage of creating the connection or when changing the settings.
Multi-SSID
In principle, for any connection you can create several access points with their own names and parameters. The essence of this process is that in this way the connection speed can be divided among several groups of users. For example, such settings will be relevant if one network is required for the personal use of the head of the enterprise, the second - for staff, and the third - for public access.
You can set such parameters on the same router, but use the corresponding Multi-SSID section for this, where the values of point names, passwords and many other parameters are set.
Conclusion
It remains to add that, in general, there is nothing complicated in understanding the definition of SSID networks. Another thing is related parameters and additional settings. But it is unlikely that the average user will do such things. Typically, knowledge in this area is required more by system administrators or employees of provider companies that provide Internet access services.
With the increase in the number of mobile devices, wireless networks have become the number one means of accessing the Internet. Having created your own, you will probably want to change its ugly, standard name (SSID) to something more attractive that will stand out among all the networks available in the area.
Now we will look step by step how to change the name of a Wi-Fi access point.
Checking the connection
Turn on the router, if it is not already turned on, and make sure that the Internet is connected to it. In addition, you need to check that your PC is also connected to the router. Moreover, it is advisable to make the connection through a wired connection. If you connect via a wireless network during setup, the connection will be lost when you change the name. 
On the connected computer, you need to open a browser. In the address bar, enter the network address of the router and press “Enter”. This address will be different for different device manufacturers. You can find it in the user manual for the router. You can also use the IP from this list, according to your device:
- Qwest, DLink, Netgear, Trendnet, Senao: 192.168.0.1
- Linksys, 3Com, Asus, Dell, US Robotics: 192.168.1.1
- Belkin, Microsoft, and SMC: 192.168.2.1
- Apple: 10.0.1.1
You can also find out the router address through the command line on your computer. As a rule, its address is the address of the network connection gateway. Press the Win+R key combination at the same time and enter cmd and press "Enter". A command line window will open, run the command in it ipconfig. The network connection settings will appear, find the value for the gateway and copy it.
If you are a Macintosh OS user, open the Apple menu and expand System Preferences. Next, find and open network settings. Now you need to find the section for the router (it will say “Router” there). A window will open in which the local IP of the router will be indicated. 
Some devices are equipped with additional drivers, which already contain special utilities for management. Although, to access the router settings, you will still need to enter your username and password. 
To gain access to a device, authorization is often required. If the device is new and you have not yet set up your login information on it, then the login and password will be standard. You can find them in the same documentation for the router or look them up on the Internet according to your model. Typically, the login field should be left blank, and the password should be the word “admin”. 
Open the settings for wireless connections
After successful authorization, the router settings will open. Open your wireless network settings. They may have different names, look for any name related to wireless connection. 
Looking for SSID parameters
There may also be different names: “SSID”, “Network name”, “Name of wireless access point” and others of a similar type. This field will have a not very attractive, standard name, such as: “Dlink”, “ASUS”, “quest123” and others. 
Enter a new name
Now come up with a new name for your network. Here you can be creative and come up with something original that will make your network stand out among the many access points with standard names. Moreover, the name of the network will be displayed to everyone who looks at the list of available Wi-Fi points 
Saving the new name
After you enter the new name in the appropriate field, save your changes. To do this, click on the button “Apply”, “Save”, “Ok”, “Save” or another similar name.
After this, make sure that the settings were successfully saved. Take any Wi-Fi capable device (laptop, smartphone, tablet) and search for available networks. Among them should be yours, with an already changed, new name. Connect to it, check the Internet. 
Update your connection settings
If you have already connected to a wireless network with the original parameters from your devices, you will have to search for networks and connect to your access point with a new name and authorization data. Check if the connection is successful.
Point by point:
- If you are trying to connect to the router with its standard IP, but nothing works, try restarting the device. The instructions for the router should contain information on how to do this, or you can look it up on the developer’s official website. This simple action will return the default address for connecting to the device.
- Remember that the name you set on your router will be displayed to everyone within its range. Including strangers.
- Under no circumstances should you indicate your personal data, passwords, logins, or any of your information in the name of the network. Always set a password to access your network.
If you remember the times of the birth of the Internet, a picture involuntarily pops up in your head where ancient huge computers, shrouded in a bunch of wires, stand on a table. But in a modern apartment at the moment everything is different. Huge computers have been replaced by the most compact devices (laptops, smartphones, etc.), there are fewer cables, and in some places there are none at all.
All this became possible thanks to the development of wireless data transmission technologies. Large modems have been replaced with universal wifi routers. They are capable of transmitting wired Internet through a radio frequency network that has its own specific ssid name.
Many users, when encountering this for the first time, ask one question: “What is it and what is it for?” First of all, ssid makes the wifi network unique among others, which makes it easier to find and connect. Also, in some cases, the name is necessary to configure new equipment (router).
This article talks in detail about methods that will help users find out the ssid of a wireless network.
Windows Internal Network Name Recognition Tools
First of all, you need to make sure that your computer has an adapter that allows you to connect to the wireless Internet. Even if you know in advance that it is there (for example, you are holding a laptop), it would be good form to find out whether it is on or not.
To do this in Windows, you can use two methods:
After making sure that the wireless network adapter is present and turned on, the next step will be to view all existing ssids in the area from the computer. To do this, you need to left-click on the wi-fi icon, which is located at the bottom left side next to the clock. After this, a list should appear with the names of all available points to which you can connect. 
Internal Android device recognition
Now everyone has a gadget on the Android platform in their pocket. Almost all such devices have communication modules that can connect to a wireless network.
To find out the name of the connection you need to: go to the main menu, find the “Settings” icon, then go to the Wi-Fi item. Here in the window that appears you need to turn on the adapter; at the top you can see the corresponding switch. After turning on, in a few seconds all points that have a name and can be connected should be displayed. 
Methods for advanced users
To find out more detailed information about a wireless network, many users use specialized programs called sniffers. These are utilities that allow you to determine the network name, find hidden ssids, show the mac address of the router and much more.
There are many different sniffers on the Internet, both paid and free versions. The article will not describe a single utility; the general mechanism of the program will be described.
Each sniffer works according to the same algorithm, the only difference is in the calculation procedures and the presence of additional functions. First, you need to scan your workspace to find hidden networks, collect information about ssid, and other data. 
Then, based on the collected data, the utility shows the user a list of found access points, where information is collected opposite each one: name, signal level, encryption algorithm, communication channel and much more. This data is mainly of interest to network engineers who analyze the network. As a rule, at this stage, it is enough for the user to know the name, level and operating mode of the desired router.
As you can see above, there are many ways to find out the ssid of a wireless network. Many methods are very simple and even an inexperienced computer user can handle them. For people who like to discover something new, we can recommend using a specialized utility - a sniffer. It will allow you to find out not only the name of the network, but also a lot of other useful information, based on which you can optimize the operation of your router as much as possible.
