How to Increase Your WiFi signal strength

More businesses and homes are using WiFi as their source of Internet access. With more reliance on WiFi connections, there is an increased need to check WiFi signal strength. It’s no longer “good enough” to glace at the WiFi indicator in the toolbar to know the signal strength. Monitoring and improving WiFi signal strength is essential

At home, you are the network administrator. You need to know how to check WiFi signal strength, identify weaknesses, and take action to strengthen the signal. Everyone wants more speed, but without a strong WiFi connection, the quality of the connection suffers. A weaker signal leads to slower speeds and a higher chance of disconnection. Making use of a WiFi Site Survey will identify weaknesses in your WiFi network and indicate areas for improvements.

Wifi Router

How is WiFi signal strength measured

Received Signal Strength Indicator (RSSI)

WiFi signal strength measurements are in decibel milliwatts (dBm). You don’t need to understand the science behind the dBm measurement. You just need to know which values are optimal. When you check WiFi signal strength, you look at the Received Signal Strength Indicator (RSSI). This measurement is a negative value. You want the RSSI to be as high as possible. A signal strength of -90 dBm indicates the WiFi is virtually unusable, while a reading of -50 dBm is excellent.

Signal to Noise Ratio (SNR)

Background interference between your device and WiFi router is considered noise. When you check WiFi signal strength, you also need to examine the noise level. To measure noise level, use a WiFi analysis app. NetSpot is the best app to check WiFi signal strength and noise level.

With the RSSI and noise measurements, you can determine the Signal to Noise Ratio (SNR). The SNR is the difference between your signal strength and background noise (noise floor). You want a high SNR. Think of noise as the sound in a movie theater. It is difficult to say something to the person next to you because the noise in the theater is intense. The theater would have a low SNR.

What should WiFi signal strength be?

A WiFi signal strength between -55 dBm and -70 dBm is good. A signal strength higher than -55 dBm is great, while a -85 dBm measurement indicates a very low WiFi signal strength.

There are other factors to consider when determining if you have sufficient WiFi signal strength. For example, a live stream requires a strong signal, while a connection to send emails and check out a few websites does not.

How to check WiFi signal strength?

You know your targets for RSSI, background noise floor, and SNR. These target measurements don’t help until you know how to check WiFi signal strength.

Use a WiFi analysis app

NetSpot is the best app to check WiFi signal strength. NetSpot uses WiFi Discovery and WiFi Site Surveys to provide data tables, charts, and heatmaps to visualize your WiFi signal strength, helping you quickly identify connection concerns and interference issues. NetSpot’s heatmaps identify low signal levels, interference spots, dead-zones, and much more.

Use a Built-in WiFi Signal Strength Utility

Apple and Microsoft both come with built-in tools to manage WiFi connections and measure signal strength. Using these tools is a quick and easy way to check WiFi signal strength. Still, their accuracy does not compare with that of a WiFi analysis app, like NetSpot, whose focus is on measuring and improving WiFi signal strength.

WiFi Strength

Without data from a WiFi analysis app, you just as well count the number of bars on the WiFi indicator in the taskbar. You will have a general idea of your WiFi signal strength, but you won’t have the data needed to analyze the measurements and identify ways to strengthen your signal.

Use an Online Internet Speed Test

There are several free online Internet connection speed tests. Comparing speed test results with speeds promised by your Internet Service Provider (ISP) can be used as an indication of the WiFi signal strength in your general location. However, it is no substitute for the values returned by a measurement and analysis app, like NetSpot.

How do I increase my WiFi signal strength?

Update your software, drivers, firmware

Check if your WiFi router needs an update. Hardware manufactures are always improving or fixing their products. The difficulty or ease of applying an upgrade depends on your manufacturer. When they have an update, they will post it on their website. Check occasionally to make sure your router is running the latest version.

If you have a pre-2009 WiFi, it’s time to buy a new one. You will see an immediate improvement in your WiFi signal strength. Your router has served you well. It’s time to let go.

It’s a good practice to keep all devices on your WiFi network updated to their latest software versions. An older version or driver on your network can negatively impact the WiFi signal strength.

Move your router to a better location

WiFi signal strength is a point to point measurement. Visualize a straight line from your device to your WiFi router. How many walls does your imaginary line pass through? How many floors? What materials comprise the walls and floors? All of these factors impact your WiFi signal strength.

Effect of Router Location on WiFi Strength

You want to locate your WiFi router with as few obstacles between it and its connected devices. If the signal has to pass through obstacles, the RSSI will decrease, indicating a weakened signal. Barriers made of concrete or brick reduce WiFi signal strength more than those made of wood.

After you determine where to place your WiFi router, make sure it is in an elevated location without immediate obstacles and point the antennae up.

Use the 5 GHz frequency band

Modern WiFi routers use a 2.4 GHz and a 5 GHz frequency band. If you have a dual-band WiFi router, use the same SSID and password for both frequencies. Most WiFi-enabled devices today will automatically switch to the frequency band best suited for its current need. A significant difference between the 5 GHz and 2.4 GHz frequency band is the number of channels available for use – 23 and 11, respectively.

If you have an older model router, make sure it uses the 5 GHz frequency. Many devices in your home or office use the 2.4 GHz frequency band.

Avoid overlapping channels

When it comes to WiFi channels, it’s best NOT to go with the crowd. You may need to change the channel of your WiFi router. When installed, it scanned all available channels to find one not in use or with the lowest usage at the time. Neighbors have come and gone. Everyone has added cell phones, tablets, and computers (maybe even a toaster) on the WiFi network. The channel in use by your router may have become an expressway.

Avoid Overlapping Channels

When you check WiFi signal strength, you should review channels in use and find one with less traffic. With the information provided by NetSpot, you can quickly make the change to your WiFi router settings. Without NetSpot, it can be challenging to determine if you are on a congested channel and even harder to locate a road less traveled.

Reduce the noise level

Minimizing or removing background interference always improves your WiFi signal strength. Even if small, reductions to the noise floor improve signal strength.

You can find areas with a high noise floor using heatmaps provide by NetSpot. NetSpot has a High-Level Noise Heatmap that will help you find areas for improvements. Look for items to remove or regulate in all red and yellow zones of the heatmap.

Boost the signal using a wireless signal booster

Add wireless booster(s) to your network. A wireless booster receives a signal, amplifies it, and re-broadcasts it. Its purpose is to increase WiFi signal strength, extending the signal’s reach to all corners of your office or home. A WiFi booster is simple to install. It is as easy as adding a cell phone to your network.

With a WiFi Site Survey, you can quickly and easily visualize your entire network and see where it would be best to install a wireless signal booster.

Taking on the role of administrator of your home WiFi network can be a daunting task. Using NetSpot, the best app to check WiFi signal strength, you will enjoy the benefits of a strong WiFi signal without spending hours of your valuable time. You have other responsibilities you can’t delegate to NetSpot. Play with your kids, walk the dog, or just sit back and binge-watch the final three seasons of that series. You know the one.