Upgrade your old router
If you have a three- or four-year-old router, its performance will invariably decrease; no amount of rearranging or additional hardware can solve that. Buying a new, up-to-date router may be the best solution in this case.
Place your router in a central location
Position your router for optimal performance, while the location of your Internet cable will dictate the general location of your router, there are a few things you can do to make sure that your router’s range is emphasized, Place your router as high as possible in a central location
Remove obstructions from your router’s path
Physical obstructions such as furniture, cabinet doors, walls, and appliances can all dampen your router’s signal. If you want to experience your router’s full signal, you’ll need to position it so that the signal isn’t impeded by physical objects.
Make sure your router is using the 2.4 GHz channel.
Many routers are “dual-band”, meaning that they support both the common 2.4 GHz channel and the less-common 5 GHz channel. If your router is a dual-band model, make sure that you’re connected to the 2.4 GHz Wi-Fi network for maximum range.
Use a less-crowded wireless channel,
If you have neighbours, their routers and access points may be interfering with yours and causing the signal to degrade. Wireless routers can operate on a number of different channels, and you want yours on a channel with as little interference as possible. Though your router can probably pick the best channel for you, you want to make sure that it’s evaluating the situation correctly. Use a tool like Network Analyzer Lite or WiFi Analyzer to see where your wifi network falls in relation to everybody else’s, and switch channels manually if your router picked poorly.
Set Up a Wireless Range Extender
Perhaps it’s just a matter of room size. All routers are only capable of broadcasting reliably up to a certain distance. Any further, and the signal gets weak. If your wireless network covers a large area, you need a wireless range extender—also known as a wireless repeater or a Wi-Fi expander—to help boost your signal. It is suitable if there are thick walls or other physical structures that block signals at your home
Replace Your Antenna
If your router has an internal antenna, adding an external one would be a good idea, as the latter tends to send a stronger signal. Many router manufacturers sell omnidirectional antennas, which send a signal to all directions, or directional ones, which send a signal in one specific direction. Most built-in antennas tend to be omnidirectional, so if you are buying an external one, it should be marked “high-gain” to actually make a difference. A directional antenna tends to be a better option since odds are that you aren’t experiencing weak spots in your network in every direction.
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