Place the router in the middle of the house, So that you can access it form anywhere in the house.
Do not try to hide the Router behind any curtain or Television set, It will block the signal hence you won't get that much of the strength.
Stay Up-to-Date. Use the latest Wi-Fi technology.
Experts Recommends to keep the router at least a couple of feet above ground level.
Keep your router away from other electronics.They may interfere with your router signal.
You can expand your Wi-Fi range by using homemade extenders or plug-in extenders.
You can convert your old Wi-Fi routers into extenders or repeaters.
Keep the Router's software Up-to-Date.
Do a quick Speed test to figure out if your router is the problem or your service provider.