Why is the actual network speed always inconsistent with the official claim? A: There are both common sense factors and fake broadband "cheating" behavior. The following system home Xiaobian tells you why the Wi-Fi speed in the home is slow? 1, the unit of different broadband units is Kb /sec, the download speed unit is KB /sec, 1B (Byte) = 8b (bit), therefore, the official said 100 Mbps broadband, the theoretical download speed of up to 12.5M /sec, Instead of 100M/sec. 2. The actual network speed will be affected by many factors. The download rate will be affected by factors such as computer performance, website server, website bandwidth and download resources at the same time. It is basically impossible to reach the highest theoretical download rate. At the same time, ADSL technology is an asymmetric digital technology, resulting in a speed up and down asymmetry. For example, the downlink rate is 20 Mbps, and the uplink rate is only 1 Mbps. 3. False broadband flooding After some broadband network service providers in China have obtained broadband resources at the lowest cost, they will abandon the promise of exclusive broadband and guaranteed network speed when selling broadband to users, and divide limited broadband resources. Sell to as many users as possible to dilute operating costs and maximize benefits. This is called "false broadband". Why is the WiFi speed at home slow? A: There are four main reasons. 1. Signal congestion WiFi is like a radio station, and the same radio station uses the same band. In other words, the more WiFi transceivers around the user, the greater the impact on the WiFi network signal. In addition to the router itself, mobile phones, wireless phones, microwave Shanghai, Bluetooth and other devices may be the cause of congestion. 2, unable to send and receive WiFi signals at the same time can not send and receive data at the same time, which will inevitably cause data delay. Therefore, many people using the same WiFi channel at the same time will greatly affect the signal strength of WiFi. 3. The software background checks if the software of the device you are using is automatically synchronizing data and photos. Most of these applications work in the background and are ignored by users, but it is taking up a lot of traffic. 4, router location Wireless router placement has a very large impact on signal strength. For example, if you place the router on the edge of a cement wall, its signal strength will be greatly reduced. If possible, the best place for the router to place is naturally on the ceiling in the middle of the room (of course, many consumers do not have such conditions). Why is public WiFi not working? A: At present, the domestic public WiFi is not up to standard in the experience. 1. Operators lack enthusiasm From the current point of view, WiFi can't alleviate the traffic pressure of 3g data services, and it can't make operators profitable. These two key points have not been achieved. Therefore, operators are less enthusiastic about WiFi, and there is a lack of motivation to solve the problem of slow network coverage. 2. Another reason for the lack of experience in product deployment WiFi signals is that operators and malls lack experience in this area. Since the WiFi deployment and the mobile base station strategy are not the same, the selection and mutual cooperation of various AP sites requires a more professional solution. But operators have no more experience to use. 3, the user operation is more complicated. The operator's public WiFi is free during the trial operation, but its original intention is to charge. Therefore, if the user wants to connect, he must register an account, obtain a password, and fill in the registration information through the browser pop-up page after connecting to WiFi. Such complex processes often make users feel overwhelmed, and cumbersome operations let users give up when they are not finished. 4. There may be misunderstandings. Not all WiFi that can be searched is public-facing. Some shopping malls, bars, and high-speed rail vehicles, there will be some internal LAN or office network WiFi hotspots, these hotspots are unable to connect to the Internet. Therefore, if you encounter this kind of WiFi signal, even if we connect, we can't access the external network. A US company is preparing to launch hundreds of microsatellites to provide free WiFi access to people around the world. Is this thing reliable? A: The answer is very clear and not reliable. 1, "Outernet"; project one-way data dissemination, can not freely access the Internet. Its original intention is to provide a "broadcast" network coverage for those remote, backward, and unable to access the Internet. Mainly used for education and knowledge popularization. Therefore, these contents are also planned and arranged by the sender in advance. It is not free to let you access any website on the Internet. “Outernet” is actually a network based on space “radio station”, you can only listen to it in one direction and access it by mobile phone. The project claims to allow everyone to surf the Internet freely, bypassing web censorship. This idea of Internet-based liberalism, while sounding very beautiful, may bring unknown risks to the project. Few countries are willing to accept such a completely unregulated Internet “broadcast” existence, and the results are naturally not optimistic. 2. Satellite Internet access is actually feasible. It is too difficult to get free. Is the technology of satellite Internet access feasible? The answer is yes. Although the satellite is far away from us, with the advancement of technology, the speed of commercially available satellite Internet access has reached 20Mbps. However, due to natural restrictions such as transmission distance, satellite Internet access is still unable to provide services on a large scale. Once it is free for all, it is likely to cause network paralysis. However, even if “Outernet” cannot truly “online”, it is of great significance in eliminating the inequality of educational resources. This article comes from [System Home] http://www.xp85.com