Having trouble with your Wi-Fi connection? Try using 5 GHz instead of 2.4 GHz. Sure, 5 GHz Wi-Fi is newer, faster and less congested ̵1; but it has a weakness.
5 GHz vs. 2.4 GHz: What's the difference?
Wi-Fi can run on two different "radio" bands: 5 GHz and 2.4 GHz. 5GHz Wi-Fi usually went with 802.11n-now known as Wi-Fi 4, which was introduced in 2009. Later, Wi-Fi was largely 2.4 GHz.
This was a great upgrade! 5 GHz uses shorter radio waves, giving faster speeds. WiGig takes this further and works on the 60 GHz band. It means even shorter radio waves, resulting in even faster speeds over a much smaller distance.
There is also much less congestion at 5 GHz. It means a more solid and reliable wireless connection, especially in dense areas with many networks and devices. Traditional cordless phones and wireless child monitors also work at 2.4 GHz. That means they only interfere with 2.4 GHz Wi-Fi not 5 GHz Wi-Fi.
To sum up, 5 GHz is faster and provides a more reliable connection. It's the newest technology, and it's tempting to use 5 GHz all the time and write off 2.4 GHz Wi-Fi. But shorter radio waves of 5 GHz Wi-Fi mean that it can cover less distances and not be good because it penetrates fixed objects like 2.4 GHz Wi-Fi is. In other words, 2.4 GHz can cover a larger area and is better to get through walls.
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You can use both with a router
Modern routers are generally dual band routers and can simultaneously operate separate Wi-Fi networks at 5 GHz and 2.4 GHz frequencies. Some are "tri-band routers" that can provide a 2.4 GHz signal along with two separate 5 GHz signals for less traffic congestion among 5GHz Wi-Fi devices.
This is not only an old device compatibility feature that supports only 2.4 GHz Wi-Fi. There are times when you want 2.4 GHz Wi-Fi even with a modern device that supports 5 GHz.
Routers can be configured in one of two ways: they can hide the difference between 2.4 GHz and 5 GHz networks or expose it. It all depends on how you are called the two separate Wi-Fi networks.
For example, you can name both networks "MyWiFi" and give them the same passphrase. In theory, your devices automatically select the best network at any time. But it doesn't always work right, and you can end up with devices connected to the 2.4 GHz network when using 5 GHz or vice versa.
So instead you can name a network "MyWiFi – 2.4 GHz" and the other "MyWiFi – 5 GHz." The names need not be related to each other or include the frequency. You can name a "Peanut Butter" and a "Jelly" if you want. With two different names, you can choose between networks on the device. You can still give them the same passphrase to make things easier.
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If you're having trouble with your Wi-Fi and you're connected to 5 GHz Wi-Fi Fi, it's always a good idea to connect to 2.4 GHz and see what's happening.
5 GHz can sound newer and faster – and that's – but it's better in smaller spaces. open space is 2.4 GHz better, so if you want a better Wi-Fi signal outdoors, connect to 2.4 GHz instead of 5 GHz or if your Wi-Fi needs to travel through some dense objects before reaching You, come more 2.4 GHz to do a much better job than 5 GHz.
2.4GHz Wi-Fi should also work better than it used to. With more people switching to 5 GHz, the 2.4 GHz band should be less congested in your area. And with disruptive devices like old wireless phones and wireless baby monitors getting retired for modern smartphones and Wi-Fi monitors, there should also be fewer devices that can interfere with 2.4GHz in your home.
There are other ways to deal with this, of course. You can get a wireless Wi-Fi system and place access points throughout the house. But if all you want is a reliable Wi-Fi signal, just try connecting to 2.4 GHz Wi-Fi before spending the 5 GHz Wi-Fi everywhere.
Wi-Fi 6 will make 2.4 GHz better  2.4 GHz has been negligible. 802.11n (Wi-Fi 4) supports both 2.4 GHz and 5 GHz. But 802.11ac (Wi-Fi 5) only supports 5 GHz. If you have a dual-band 802.11ac router, it runs a 5 GHz 802.11ac network and a 2.4 GHz 802.11n network. 5 GHz uses a more modern Wi-Fi standard.
Wi-Fi 6 will fix this problem. The next-generation Wi-Fi standard supports both 2.4 GHz and 5 GHz networks, so various enhancements that add a faster, more reliable signal will also lead to 2.4 GHz Wi-Fi. 2.4 GHz is not just old technology that remains.
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How to choose between 2.4 GHz and 5 GHz  To choose between 2.4 GHz and 5 GHz, enter the router's web interface and find the wireless network settings. Give the 2.4 GHz and 5 GHz network separate SSIDs, or names. You can put "2.4 GHz" and "5 GHz" in the names to make it easier to remember. And you can use the same wireless passphrase for each.
Your router can be configured to use the same name for both by default. This means that you cannot choose between them – your devices automatically choose between them. Separate names give you a choice.
Now you can easily choose between networks on the device. Enter the device's Wi-Fi connection menu and select the network you want to connect to.
Once you have joined each network, your device will remember the passphrase and you can easily connect to any one you want by selecting it from the menu. Switching is easy and fast.
About 2.4 GHz Wi-Fi does not solve your problems and you are still struggling to get a solid Wi-Fi connection in your home or business , consider a network Wi-Fi system. This gives you multiple access points you can place throughout your home and do a good job of expanding reliable coverage. And, unlike a traditional wireless repeater or extender, the network Wi-Fi installation process is much easier.
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