3. Hide Your SSID
Your Service Set Identifier (SSID) is automatically broadcast from your router to make it easy for you to add new devices on it. By hiding your SSID, it won’t show up when unauthorized devices scan for nearby networks. And if you don’t show up on any network scans, people will be much less likely to try and hack your password to gain access. The only setback is you’ll have to manually enter in your router’s SSID each time you want to add a new device on your network.
http://www.securewifi.com.au/d-link-dsl-2740-b-wireless-router/ Via securewifi.com
2. Get a Repeater
Most common routers have a range of roughly 45 meters. So if you live in a big house, devices located in rooms that are farthest away from your router might have more trouble connecting to your home Wi-Fi network. One way to fix this problem is with a Wi-Fi repeater — a device that plugs into any wall outlet and can boost a signal’s strength and coverage. However, it should be noted that devices connecting to the network in the router’s new extended range might not achieve speeds as fast as devices located closer to the actual router. Another alternative for more technical minded individuals is to convert an older or unused router into a dedicated Wi-Fi repeater.
http://www.amazon.ca/DODOCOOL-Wireless-N-Repeater-802-11N-Expander/dp/B00DNP90QY Via Amazon
1. Use a Beer Can
This idea sounds a little crazy but certain metals can actually reflect Wi-Fi signals. With a little ingenuity, you can harness that quality to focus the signal from your router and aim it towards the area where your wirelessly connected device is located.
To use this trick, first drink the contents of the can. Next, rinse it thoroughly and pull off the tab. Then, put on some protective gloves and use a box cutter or metal cutting tool to cut off the bottom of the can. Do the same for the top of the can, but don’t completely remove the top portion. Instead, try to leave a small inch-wide tab attached to the top. Opposite the tab, cut the can lengthwise and carefully unfurl both sides to create what looks like a little radar dish. Finally, turn the can upside-down and slide the mouth of the can over the router antenna. You can also file down any jagged metal edges and secure the can with tape to make it a little more safe.
By reflecting the Wi-Fi signal, you do sacrifice some area coverage, but it allows you to boost the overall signal strength. Which is great for people living in small apartments.
Minors, please use a pop can instead!
http://acrossinfinity.com/2015/08/19/need-to-boost-your-wi-fi-signal-just-drink-a-beer-or-soda-and-read-this/ Via acrossinfinity.com