Failure phenomenon:
When you use a Wi-Fi network, you often drop the line or are restricted, or at some point there is a yellow exclamation mark on the Internet sign in the lower right corner, as shown in the following illustration:
Solution:
1. First look at the wireless signal strength is good (please refer to the figure below), generally more than three grid relatively stable, if the signal is le
services and a variety of IP data Services applications, can also be used for mobile communication base station links.Datang Telecom 3.5GHz Fixed Wireless access system base station frame on the backbone of the main pop node, flexible use of network backbone pop node provided by the nxE1, 10/100baset connection interface, so that the telecommunications operators can quickly and flexibly to provide integrat
Nixcraft published on August 25, 2012, updated on July 9, 2014, applicable to Debian/ubuntu, network, UBUNTU LINUX, wireless network.We have an idle USB wireless adapter (WiFi adapter), and our ISP router is wired. How do we turn our home NAS server into a wireless access point
With the continuous development of broadband applications, ADSL increasingly popular, at the same time, with the advent of wireless LAN technology and development, this market is also rapidly heating up, but the absolute number still less than ADSL.
There are already technologies and products that combine the two, and the advent of these technologies will greatly accelerate the popularity of WLANs.
In the traditional WLAN
This article describes in detail how to set up the Community construction of the Broadband Wireless Access System, and gives us a detailed introduction of the concept of macro community network.
We have introduced the concept of Dual-Layer Broadband Wireless Access Network. Next we will give a detailed introduction to
bearer services (such as wireless base Station and controller connection), without the use of optical fiber and optical port equipment.Low cost of operation and maintenance. Because of the wireless characteristics of the system, it can save a lot of line maintenance personnel and reduce the operation maintenance cost.Satellite accessThe main features of satellite communication are wide coverage, natural br
IntroductionWith the rapid development of the Internet, people increasingly want to be flexible, fast, low-cost, anytime and anywhere access to the Internet. Because of these features, wireless communication technology is increasingly used in Internet access. In IMT-2000, it is stipulated that the third generation mobile communication system must support mobile I
deploy the broadband mobile network in the future for the next 3G technology evolution direction, to guide the formulation and development of next-generation mobile network standards [1].
NGMN also faces a variety of network interconnection and convergence issues. Figure 1 shows the system architecture of NGMN in the future and the coexistence mode between NGMN and the current mobile network, such as 2G/3G circuit domain (CS. Over time, the traditional CS part will be gradually eliminated. In t
Wireless access has cellular mobile phone system, digital cordless telephone system and point-to-point microwave system, and many other technical systems to choose from. So, in order to carry out the arduous task of our country Telecom universal service, operator chooses that kind of technical system to be suitable? In
It is a main trend of mobile communication development to realize Internet access through mobile communication system and reach the Internet at anytime and anywhere. However, from the current point of view, GPRS to wait until the end of the year in some countries, and because of the impact of technology and other factors, the real 3G products and services, the launch of a two-year period or so.In the existi
Wireless Broadband Access Network is more commonly used, so I studied the WDM-PON technology will become a new direction of wireless broadband access network, here to share with you, I hope to be useful to everyone. The Passive Optical Network PON technology has received great attention in the industry in the past two
Welcome to the network technology community forum and interact with 2 million technical staff to enter the Windows system. By default, the "any available network" option is automatically selected, however, this option requires the support of Wireless AP devices. If we do not have the support of Wireless AP devices, this option cannot be selected. Similarly, "Access
Wireless laptop Internet access is now at the last point! The previous "detail: complete steps for wireless laptop Internet access 1) 2) 3) 4)" is related to wireless network construction. The real notebook settings start with thi
Broadband Wireless access technology represents a new development trend of broadband access technology, not only the rapid opening of the network, simple maintenance, low-cost users, but also changed the traditional concept of local telecommunications services, the most suitable for new telecom competitors to carry out effective competition, It can also be an imp
The security of Wireless Access networks is a topic that people have always been concerned about. Many people may not understand the shortcomings of Wireless Access Networks in encryption technology. It does not matter. After reading this article, you must have gained a lot, I hope this article will teach you more thin
Configure wireless Internet access for Ubuntu 14.10 server Edition
Today, we will install Ubuntu 14.10 server Edition on our "obsolete" laptop, as a small server.
After the installation is successful, because the operating system on the desktop used to configure wireless Internet access through the interface, due to th
to a desktop computer. By using a wireless access bridge installed in a building, you can quickly complete network connection without wiring engineering, therefore, it can greatly reduce the time period for activating the network system, and thus reduce related costs and improve efficiency. It is very suitable for the actual situation where the current network construction of university campuses in China r
multicast distribution service, is a broadband point-to-point access system that can access voice, data and video services. LMDS system using millimeter wave transmission, working in the 20-40ghz band, can provide up to 155.52Mbps user access rate, known as a "
In fact, the failure of DHCP (Dynamic Host Control Protocol) after wireless negotiation is a common problem. Wireless negotiation establishes a data link. Once the connection is established, the base station can transmit and receive data frames. At this point, most base stations send a DHCP request: A UDP packet is sent from 67 to 68 ports. If a local area networ
(0.0 B)
# Iwconfig
Lo no wireless extensions.
Wlan0 IEEE 802.11bgn ESSID: off/any
Mode: Managed Access Point: Not-Associated Tx-Power = 20 dBm
Retry long limit: 7 RTS thr = 2347 B Fragment thr: off
Encryption key: off
Power Management: off
Eth0 no wireless extensions.
Question: 1. How can I enable the
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