The goal of this tutorial is to show how you can convert any computer into a WiFi hotspot. The objective is to allow any user to have a virtual router from his computer to be able to have access to Internet in all the devices of the house, ie our PC will work as an Internet server that manages the WiFi connections. This way whenever the computer is connected to the Internet it will also broadcast via WIFI to give internet access to our mobile phone, to the Tablet, another computer, etc.
An example of the use we can give to this trick is when we travel to a hotel or campground that provides us with the WiFi password. Sometimes it happens that from our accommodation, we can not connect with the laptop or the Tablet because the signal arrives with very little intensity. In this case if we install a long-range WiFi antenna in the window surely receive the WiFi signal with USB quality to our laptop, then activate the access point mode and ready, the computer will emit WiFi for our other devices.
This method is very useful also if we use an office that has LAN cable for our computer but not WiFi coverage, with this trick we will give WiFi coverage to our smartphone and tablet with total security.
1-Configure your computer as WiFi access point with Windows 7/8/10
Although many people do not know or do not usually use it, using a PC or laptop as a modem or router to share the Internet via WiFi is not a difficult task and much less is a task that can only configure a computer.
The first thing to keep in mind is that this capacity windows added from Windows 7, so if you use a previous operating system, you can not do with the tips of this tutorial.
There is a very complicated manual process to do it by following a few Windows configuration steps accessing the Control Panel and then in "Network and shared resources Center" you can create a new network connection and share it as an Ad Hoc connection. But, honestly, the manual configuration is complicated and it makes a lot of mistakes. For this reason it is better to use a software that does the work in a few simple steps.
There are some payment software that do this job but they are not worth it as there is a software program specialized D Eun WiFi chip manufacturer that is the most recommended and that is also free. It is the Soft-Ap of Mediatek. The program is called Mediatek Wireless utility and is a utility that Mediatek distributes on the drivers CDs of all the WIFI antennas that carry one of their most current chip. Then we leave a list of Mediatek WiFi chip compatible with the free software for WiFi or Soft AP access point.
We remember that Ralink and Mediatek are the same brand. WiFi Chip compatible with MEdiatek WiFi AP software:
Other Mediatek Chip will also work, but these are the most used.
2-Installation of Drivers and Mediatek Wireless Utility in Windows 7/8/10
This Mediatek Wireless Utility software is easy to find on the drivers CD of the powerful WiFi USb adapters that carry the latest Mediatek Ralink chip. If you have not located download the latest software Mediatek on the official website of Drivers for WiFi USB adapters powerful Mediatek
The Mediatek wireless Utility application achieves that our WiFi adapter connected by USB to the computer can work with one of these three different modes:
STA mode: Is the WiFi client mode, with this mode activated the WiFi antenna normally works as a receiver and can be connected to any WiFi network to transmit Internet to the computer. This is the default mode for all USB WiFi adapters.
STA + AP mode: With this mode enabled the WiFi adapter works by receiving and transmitting at the same time. The WiFi chip creates two different interfaces, one receives as client (STA) and the other emits as access point (AP). This mode converts the computer into a WiFi relay, receives WIFI internet and simultaneously emits it for other devices as an access point.
AP mode: In this mode the WiFi adapter becomes a router that emits WiFi as an access point (AP). It is necessary that at the same time have a WAN input, that can be both a RJ45 cable entering the PC with Internet or another WiFI antenna by USB that is receiving. With this mode the software allows to choose which WAN input we will use to repeat it by WIFI.
The number of uses and configurations that this software allows with the three available modes is infinite. We can solve many situations and provide WiFi connection to various devices whenever we have some type of Internet connection. For example if we leave an office to work with a desktop that has wired LAN, we can connect our laptop and use the WiFi USB adapter as AP to broadcast WiFi internet to our mobile phone. It is very easy to set up and works with the same quality as a router.
WiFi antenna Mediatek RT3070 Melon N80
As an example for this tutorial we will use the USB WiFi adapter Melon N80 with Chip Mediatek Ralink RT3070. This device is ideal because it has a chip compatible with the Mediatek software, it is very powerful, with a transfer rate of 150mbps WiFi N and with omni-directional antenna to give coverage at 360 º. The antenna is removable and can also be used with a directional antenna if necessary.
Once the USB cable is connected, we install the MediaTek Wireless Utility software. This software as well as the driver for the RT3070 chip are installed from the CD that goes in the Melon N80 adapter box.
It is necessary to remember that the driver is designed for Windows 7, so to make a more secure installation in Windows 8 or Windows 10, it is better to install it in compatibility Mode for Windows 7. This is done before installation locate the file in the folder of the CD or the hard disk and with right mouse/properties Select the option to use in compatibility mode Windows 7.
Once the software is installed it will always start when you turn on the PC and it will appear in the taskbar. If the WiFi antenna is connected we can start using it. If we open the default mode is WiFi client (STA). The mode change is done by clicking on the Mediatek icon of the taskbar with mouse right button and choosing one of the three modes (STA/STA + AP/AP)
Finally remember that this tutorial works with all WiFi USB antennas with Chip Ralink or Mediatek. The example used is a powerful indoor antenna, but we can also use it with long-range antennas. For example we can install a long range antenna Melon N519 with RT3072 chip that connects to a free open network at 500 meters from our house, and with another WiFi antenna repeat in AP mode WiFi for the whole house from the computer, all that is needed is two ports U SB on PC, one for each antenna and this Software for AP WiFi using STA + AP mode.
PANEL Antenna MELON 36DBI N519
If you have followed the steps of this tutorial you can already connect all your devices to the Internet via WiFi through your PC. Tell us your experience, questions, suggestions or any doubt you can think of in the Contact Silicon Online section.