This is a must-have product if your router is far away from your Streaming Movie Box or you have a big house. It doesn't increase your signal strength, but it puts the best signal throughout your house!! I personally bought this one and it works fantastic. Where I was barely getting one bar of signal, I now have a full bar. It is just $19.95 from Amazon.
Wifi Range Extender - MUST HAVE FOR BIG HOUSES OR FARAWAY ROUTERS
http://www.amazon.com/TP-LINK-TL-WA850RE-Universal-Wireless-Indicator/dp/B00E98O7GC/ref=sr_1_2?s=pc&ie=UTF8&qid=1439043419&sr=1-2&keywords=wifi+extender
Wifi Range Extender - MUST HAVE FOR BIG HOUSES OR FARAWAY ROUTERS
http://www.amazon.com/TP-LINK-TL-WA850RE-Universal-Wireless-Indicator/dp/B00E98O7GC/ref=sr_1_2?s=pc&ie=UTF8&qid=1439043419&sr=1-2&keywords=wifi+extender