Extend the reach of your Wi-Fi network

There are several ways including several types of products that promise to increase the gain of the wi-fi network.

Whether it is a device that increases the power of the transmitted energy or an antenna with better dbi or even external antennas, sometimes they just leave your neighbors with better access, and they are still bad for your health.

This is bad for your health because increasing the power of your network means increasing above the safe standards already established for each router.

In addition, you start to lose control of the full range of the network and start being listed over longer radial distances, and the more vulnerable you are to attack.

It has been scientifically proven that radio waves are not good for health, their exposure has to be controlled, and increasing the power of radio transmission can have consequences for your health.

To better understand, your microwave device emits a radio band similar to wi-fi to heat food, that is, to increase the power of the wi-fi radio, is to create a microwave constantly on (obviously with much lower power).

There is a rumor on the internet about a group of students doing a seed test of some flowers that were not born when next to a wi-fi router, but that is probably true.

To extend the wi-fi network, the best method in closed environments is still with several access points.

Any router can become an access point, provided that:

- DHCP is disabled to not deliver new IP addresses on the network.
- Be wired to the main router of the wi-fi network and within the main router's network using only the LAN ports (WAN only for another network segment for NAT, in this case the connection is direct from the main router).
- Wi-Fi technology, SSID and identical passwords on all access points. It is even recommended to use routers of the same brand for compatibility reasons when roaming between access points on the network.

Why use the same password and SSID on all access points?
Simple, all wi-fi client equipment does automatic roaming for the best network, and so there is the "Aggressive Roaming / Moderate Roaming" setting in the settings of these clients. It means that in aggressive mode, it will always connect in the best dbi according to its BSSID (identification of the physical wi-fi network, such as the MAC address of the network cards), in the second situation, it only roams if communication failures occur with the previous network.

It works like a cell phone, you are covered by a radio antenna, when you leave a place with a call in progress, passing through the handoff area (covered by both antennas), your cell phone automatically roams to the best antenna, and does not link goes down.

If a wired infrastructure already exists, having an access point is simply connecting the router using the LAN ports to the infrastructure, leaving the WAN disabled.

There are router models that in the settings when enabling the "Access Point", it simply disables the WAN port and makes one more LAN port available.

There are specific models that only serve to be "Access Point", which has only 1 network port called LAN / WAN, which can be converted to WAN to share the internet like a traditional router.

Like any router, an access point is a device on the network, and it needs to have its IP address established just like any other computer. By default the routers come from the factory with the number, which varies according to model and manufacturer.

If you do not want anyone to access the equipment over the network, then it is recommended to leave the IP address of the access point invisible on the network segment, using another limited IP address and netmask for these devices.

Other articles with international concerns about the strength of the wi-fi signal in relation to health. 

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