What does wlan mean on a router? WLAN connection error on smartphone. Setting up a wireless connection
Nowadays, there is an increasing need to access information on the Internet at any time and anywhere in the world. Technology provides this opportunity wireless connection WLAN (Wireless Local Area Network). This technology It uses radio frequencies rather than wired systems to connect and transmit information; this allows a huge number of users to be on the Internet at the same time.
In principle, this is ordinary wireless Internet, which can be used not only from a laptop or tablet, but also from a smartphone.
Today, such convenience is available in most modern models from various manufacturers. You can use the function for free and regardless of whether your device has a SIM card or not. The connection can be made in the “Wireless Networks” settings while within the range of the access point. The only drawback of this technology is that in a Lenovo smartphone, like in any other mobile device, during a session of such wireless connection The battery drains quickly.
Setting up a wireless connection
When purchasing smartphones from Chinese manufacturers, many users do not take into account the available mobile devices Wi-Fi technology, which makes it possible to use the Internet through hot spots or access points.
Nowadays, many establishments provide the opportunity to use the Internet for free. But how to activate this function on your phone? The instructions below tell you how to set it up in your Lenovo in a couple of minutes wireless communication with the Internet.
- It is necessary that GPRS is configured in the smartphone in advance.
- In the device menu you should find the Wi-Fi or WLAN icon.
- Open, and in the menu that appears, select “Search for available networks.”
- Select the icon for an unblocked network.
- In the options, select the “Connect” item.
If everything is done correctly, then Lenovo smartphone will connect to a free network and the corresponding icon on the screen will turn green or blue. After such a connection is made, you need to go to the browser and use the Internet.
In the options you need to select a network profile and “Profile Mode” and click the “Custom Settings” button. Next, you need to select the SIM card through which you will access the Internet, and in the “Java profile for SIM” click WLAN and OK, then select “Start”. This completes the connection, and you can now freely use the Internet.
Warning!
Speaking about all the advantages of free wireless Internet access, we should not forget about the disadvantages. The fact is that such use of Wi-Fi in public places implies an unsecured connection, since there is no need to enter a password.
Consequently, other participants in the local network can see the Internet resources you visit and the data you enter, and attackers are able to intercept them for their own purposes. Therefore, it is not advisable to enter passwords and conduct financial transactions in such places.
How to set up WLAN?
In this article I will tell you how to set up a WLAN (Wireless Local Area Network) and make this network secure.
First, you need to choose a normal WLAN router; you can quickly exchange data over a wireless network only when it complies with the 802.11n standard, which supports speeds of up to 300 Mbps, but this standard has not yet been finally approved; most routers have 802.11g standard, providing speeds of up to 54 Mbit/s, this will be enough for a high-speed Internet connection. I recommend buying the NETGEAR WNDR3300 router, it has good characteristics.
Rice. NETGEAR WNDR3300 router
The router must be positioned so that interference from cordless phones, microwave ovens, etc. does not block the router’s signal, because many devices operate at a frequency of 2.4 GHz, like Wi-Fi. It is better to mount the router as high as possible on the wall, and it is better to point the antennas vertically.
Secondly, let’s configure the router, I’ll tell you how to do this using the NETGEAR WNDR3300 as an example, but you can configure it on other routers in the same way.
Open the router settings page, type in the address bar Internet Explorer- 192.168.1.1, press Enter, in Basic Settings you need to enter data to access the Internet connection and click Apply, then go to Wireless Settings, in Name (SSID) enter the name of your network, under this name it will be shown in the list of available networks on other devices, in the next line, region, then select Auto in Channel - this is necessary for the router to select the channel with the least amount of interference, click Apply again.
Now, to protect yourself, you need a strong password so that no one can access the Internet through your connection. WLAN security has different encryption methods: WEP, WPA and WPA2. I recommend choosing WPA or WPA2, to do this, on the Wireless Settings tab you need to activate WPA-PSK (TKIP) or WPA2-PSK (AES), when Security Encryption is requested, you need to set a password, this password must be more than 15 characters, click Apply. In the router, we register the MAC addresses of only devices known to you in order to prevent other devices from accessing the router. To do this, in the Advanced menu item on the Wireless Settings tab, you need to select Setup Access List and from the list of connected devices, select those to which you want to give access and click Add. Check the box next to Turn Access Control On and click Apply. That's it, the secure network is ready.
For safety when connecting to points Wi-Fi access you can use the Hotspot Shield program, which creates a VPN (virtual private network) between a computer or laptop and a wireless access point (WLAN router), thereby creating protection when transmitting and receiving data. You can read about Hotspot Shield.
We have configured it, but the network refuses to work, what should we do?
You need to figure out what’s going on, it’s possible that your network may be blocked by another Wi-Fi network, other networks can be determined using the NetStumbler program, this program will show neighboring networks and what channels they operate on. And try setting a different channel in the router settings, different from the channels of neighboring networks.
If your network is working normally, but the connection periodically breaks down, perhaps the reason is a voltage drop in the supply network, because even a small voltage drop is enough for the router to lose connection; to prevent this from happening, you need to connect the router through a small uninterruptible power supply unit.
Also, data may not be transmitted over the network due to incorrect IP configuration, you need to check in the router settings whether the DHCP server is enabled, if there are several devices on the network that can be DHCP servers, they may conflict, to track what is conflicting, run the program DHCP Find.
If you cannot access the Internet, then you need to configure your browser: in Internet Explorer, click Tools - Internet Options, on the Connections tab in the LAN Settings section, uncheck all the items and also uncheck Automatically detect parameters if you have a different browser, then there are similar settings.
A WLAN network is a type of local area network (LAN) that uses high-frequency radio waves rather than cable connections for communication and data transfer between rkbtynfvb. This is a data transmission system that is used as an alternative to a cable local network within one building or within a certain territory. WLAN works based on WiFi technology.
What are the advantages of using a WLAN instead of a wired LAN?
Productivity increase. A WLAN network provides room-free networking and Internet access. A WLAN gives users the ability to move around a business or organization while remaining connected to the network.
Simple and fast creation of a local network. No need to pull or reinforce cables.
Installation flexibility. A wireless network can be built where cables cannot be laid; WLAN technology facilitates temporary network installation and relocation.
Reduced operating costs. Wireless networks reduce installation costs because cable connections are not required. As a result, savings are achieved, the more significant the more often the environment changes.
Scalability. Network expansion and reconfiguration for WLAN is not a difficult task: user devices can be integrated into the network by installing wireless network adapters on them.
Compatibility. Various brands of compatible client and network devices will interact with each other.
Is setting up and administering a WLAN difficult?
No. It is easier to build a wireless local network than a cable one, and the administration of both types of networks is almost the same. The WLAN client solution is built on a plug-and-play principle, which means that computers simply connect to a peer-to-peer network.
What is the communication range of WLAN devices?
RF range, especially indoors, depends on product characteristics (including transmitter power), receiver design, noise immunity, and signal path. The interaction of radio waves with common building objects, such as walls, metal structures and even people, can affect the range of the signal, and thus change the coverage of a particular system. Wireless networks use radio frequencies because indoor radio waves penetrate walls and ceilings. The range or coverage area of most WLAN systems is up to 160 m, depending on the number and type of obstacles encountered. With the help of additional access points, you can expand the coverage area and thereby ensure freedom of movement.
Are WLANs reliable?
Yes, WLANs are extremely reliable. Because the wireless technology Rooted in the defense industry, security wireless devices was envisaged from the very beginning. This is why wireless networks are generally more reliable than cable networks. WLANs use Direct Sequence Spread Spectrum (DSSS) technology, which is highly resistant to data corruption, interference, and detection. In addition, all wireless network users are authenticated using a system ID, preventing unauthorized access to data.
To transmit particularly sensitive data, users can use the Wired Equivalent Privacy (WEP) mode, in which the signal is encrypted with an additional algorithm, and the data is controlled using an electronic key. Generally speaking, individual nodes must take their own security measures before being included in network traffic. In WLAN networks operating under the 802.11b specification, 40-bit and 128-bit encryption algorithms can be used along with user authentication to ensure higher network security. Traffic interception, whether intentional or unintentional, is virtually impossible.
What is IEEE 802.11b?
IEEE 802.11b is a technical specification issued by the Institute of Electrical and Electronic Engineers (IEEE) that defines the operation of wireless local area networks. computer networks, operating in the 2.4 GHz band at a speed of 11 Mbit/s using the Direct Sequence Spread Spectrum protocol.
What is throughput WLAN 802.11b?
WLAN 802.11b networks operate at speeds of up to 11 Mbps. For users, the operating speed is comparable to the speed of a cable network. Just like in a regular network, the throughput of a WLAN network depends on its topology, load, distance to the access point, etc. Typically, there is no noticeable difference in the performance of a wireless and cable network.
What is an access point?
An access point connects the cable and wireless networks and allows clients of the latter to access cable network resources. Each access point expands the overall processing power of the system. Users can move between access points without losing connection to the network - just like when connecting to the network using cell phone. In other words, an access point is a hardware and software device that acts as a hub for a wireless network client and provides connection to a cable network.
How many users can one WLAN system support?
The number of users is almost unlimited. It can be increased simply by installing new access points. By using overlapping access points tuned to different frequencies (channels), the wireless network can be expanded by increasing the number of users in the same area. No more than three overlapping channels that will not create mutual interference can be installed simultaneously; these channels will triple the number of network users. Similarly, you can expand your wireless network by installing access points in different parts of the building. This increases the total number of users and gives them the ability to move around the building or area of the organization.
How many users does one access point support simultaneously?
The number of users in this case depends, first of all, on the traffic load. In a WLAN network, bandwidth is shared among users in the same way as in a cable network. Based on the number of users, network performance also depends on the type of tasks performed by users.
In the operating room Windows system An unimaginably huge number of different services are constantly running, which, in turn, regulate and control the operation of the computer. Each service does its own thing and coordinates certain processes occurring in operating system. In this article, we'll look at what WLAN AutoConfig (WLANSVC) service is, and where and how to enable it.
What is AutoConfig Service
First, let's look at what kind of service this is and why it is needed at all. It defines and provides the algorithms that are required for configuration, detection, connection and disconnection local networks Wi-Fi in iEEE 802.11 standard.
In addition, this service allows you to create a virtual access point on your computer. That is, thanks to WLAN auto-configuration, you can use your laptop as a router.
And now the same thing, but in the simplest words. The essence is in the name - auto-tuning. This means that this service regulates the work wireless networks on your computer, controls the operation of Bluetooth and Wi-Fi radio modules, configures connections in automatic mode and so on. But do not confuse this setting with the settings of DHCP and the IPv4 and IPv6 protocols, which you can edit manually (IP address, subnet mask, etc.). WLAN auto-configuration is a more in-depth network configuration.
Thus, it becomes clear that, in principle, the computer will work with the WLANSVC service disabled. However, you may not be able to use certain features. wireless adapter. One of these functions is Wi-Fi distribution.
As a rule, most often users encounter an error when the system was unable to start the WLAN auto-configuration service at the time of organizing wireless network distribution.
It is clear that in this case you will not be able to use your computer as a router.
To fix this you will need to start the WLANSVC service. How is this done? Everything is quite simple. It is immediately worth noting that the following instructions apply to all versions of Windows OS, starting with Vista. That is, the setup process is absolutely identical for Windows versions 7,8 and 10.
Activating the WLANSVC service
Now we have reached the main topic of this article - how to enable the WLAN auto-configuration service. Launch the internal management tool Windows services possible in several ways. The simplest are two methods:
- Through the Windows Control Panel.
- Using the “Run” service.
In the first case, open the “Control Panel”. In Windows 7 this is done through the Start menu. Click the “Start” button (on your keyboard or in the lower right corner of your desktop). Next, open the desired option.
In the G8, the control panel opens in a different way. Press two keys on the keyboard at the same time - + [X] - and select the desired item in the menu that appears.
Further steps are the same in both operating systems. In the window that opens, select the “System and Security” category.
After this, go to the “Administration” section.
Another window will open, in which simply launch “Services” by double-clicking with the left mouse button. After this, a service will open in which you can manage Windows services.
You can launch the same tool in another way. Press [Start]+[R] simultaneously. The Run window will open. We write services.msc here and click “OK”.
So, in the proposed list we find the item we need “Wlan Autoconfiguration Service”.
Open it by double-clicking with the left mouse button. Then everything is quite simple. A window will open in which you need to click the “Launch” button, and in the “Startup type” line, select the “Automatic” value.
Here you can also stop the WLANSVC service. But there is one caveat. It lies in the fact that if this service is completely disabled, then the above method will not allow you to enable the treasured WLAN auto-configuration. In this case, you need to enable it through the system parameters.
To do this, press the [Start]+[R] keys simultaneously and enter msconfig in the window that appears. Click.
Hello! I used to use Wi-Fi at home without any problems, but when I bought a new smartphone, this became impossible. At first I could connect to the network, then it started writing “WLAN connection error”, I rebooted the router, smartphone, nothing changed, then I saw the notification “The current network is not connected to the Internet, touch to fix it”, I clicked, checked the box, it was Everything was fine for a couple of days, then it started to show an error.
The notification appeared again about three weeks later, I accidentally removed it, and now I don’t even know what to do. I called the provider and told me to return the phone to factory settings, and that’s it. But the funny thing is that everyone can connect to the network except me. And my phone can connect to other networks except my home one.
Answer
Hello. If other devices connect and work to your router without problems, then the problem is not with the router, and especially not with the provider.
You first need to try deleting your Wi-Fi network on your smartphone. Click on it, support it and delete it (or otherwise). For some reason you didn’t even write what smartphone you have. After deleting you need to connect to home Wi-Fi network again, specifying the password. The "WLAN connection error" should go away.
If this does not help, then you need to take the advice of your provider - reset the settings on your smartphone to factory settings.
