If you are looking for alternatives to extend the reach of your ADSL connection, you should know that Wi-Fi is not the only possibility. In the market there are in fact of the particular devices, called Powerline, which, by the HomePlug standard, allow you to take advantage of the electrical system to transmit the signal of your connection throughout the house.
What are they and what are the Powerline?
In more detail, the Powerline adapters which, when connected to the mains, extending the scope of the connection (ADSL, but also 3G, LTE or WiMAX), creating a real home network (ie, a LAN), which allows then connect to the Internet smartphones, tablets, computers, game consoles, smart TV, and so on. The standard used by these devices is the HomePlug (in the last variant AV AV2) which, in a nutshell, using an adapter that is connected to the modem / router, allows distributing the Internet signal to each power outlet in the house . Just then plug another adapter at least (in theory, you can use those one wants) to take advantage of the Internet connection, including via the wireless in any other room. These devices are then used to cover those points where the Wi-Fi signal fails to arrive and, theoretically, should work even at distances far away from the source (even hundreds of meters).
How the Powerline?
Before buying these Powerline must keep in mind that these devices work best if they are all connected to the same electrical system, which, while filtering out the noise, it would be better that the electrical system of the house is not very old and that, to the full range potential, should also be connected directly to a wall outlet and not through uninterruptible power supply (UPS), power strips, and / or filters.
That said, in order to exploit the need of at least two Powerline adapters (possibly the same brand) and two sockets: being Plug & Play, then simply connect the first powerline modem / router (via a network cable and ethernet port) and then the other adapter into the power outlet near the device you are controlling. If the other adapter is also a range extender will not need to do anything else, otherwise you will have to connect here too the network cable to the Ethernet port of the device concerned.
Characteristics of the HomePlug Powerline
Although the actual speeds are never as promised, today the theoretical speeds achieved by these devices are of 500, but 600 to 1000 Mbps (or 1 Gbps), so there should be no problems streaming HD movies, downloading large files or in online gaming. Moreover, the prices of these Powerline are not prohibitive (about 50/60 Euros per couple) and, moreover, such as pressing a single button, help to protect your network from unauthorized access (usually through AES encryption).
As for brands, there are so many: ASUS, Devolo, D-Link, the FRITZ!, Linksys, Netgear, TP-Link and ZyXEL, but if you’re looking for a complete list of certified products, just visit this page.
Of these adapters there are also some that have more than one ethernet port, others who also have the possibility to extend the wireless signal, and still others (usually called passthrough) who, having built a wall outlet, allow you to power other devices that need to be attached to the same outlet.
Finally, here’s a video summary of what they are and what they HomePlug Powerline adapters: