A wireless network is something most people take for granted. When it is working, no one notices. The moment it starts to act up, usually slower speeds, you notice and get upset. Thankfully, there are a few things you keep in mind when setting up, or updating, your wireless network to help provide the best experience possible.

There have been times where friends and family members have asked:

Which WiFi band should I use? 5Ghz or 2.4GHz? What difference does it make? How many devices can I connect to my WiFi?

Friends

What is a dual band router?

The easiest way to explain this is that most modern day wireless routers feature dual band wireless networks. One band operates at 2.4GHz and the other at 5GHz. During setup, the router will ask you to create a network name (SSID) and password for each band. Some WiFi routers will allow you set one name and password for both bands, but we do not recommend it. Having two names allows you to manage which devices connect to the 2.4GHz and 5GHz bands.

What's the Difference?

The 2.4GHz WiFi band has been a standard for a while, it offers up decent speeds but allows for a lot of coverage and range. The 5GHz WiFi band and allows for really fast WiFi speeds, but the coverage and range is weaker. Simply put 2.4GHz is for range and 5GHz is for speed. Since 2.4GHz WiFi band is so widely used, it's a heavily congested band. This will cause issues with all devices on your network, because that band is used by other wireless routers too, so they all compete in that space. 5GHz is way less congested making it ideal for speed and more stable connections.

Which WiFi Band Should I Use?

As we stated before, when setting up your WiFi network, name 2.4Ghz and 5GHz different names. For example, wireless-2.4 and wireless-5. Now to answer the question, which one should you use? The answer is both. Having the different names, this allows you to customize which WiFi band your devices use. Giving you more control over your WiFi network and how it is used.

Examples

Now lets take a look at some examples of devices you might connect to your WiFi network and which WiFi band you should use. This list is not comprehensive. It will give you a better idea on determining which WiFi band works for your devices. The one rule we are using is the bandwidth needs of the device in question. Some devices will not support 5GHz, at which point, you have no option.

Use 2.4GHz for low bandwidth devices, such as:

  • Smart Devices
    • Speakers
    • TVs
    • Thermostats
  • Fitness devices
  • Printers & Scanners
  • Scanners

User 5GHz for high bandwidth devices, such as:

Laptops, streaming devices, security cameras, and tablets are heavy bandwidth users. But, because of range issues, those devices may need to connect the 2.4GHz WiFi band to be usable. Check out how streams or video feeds or downloads perform with these devices on both 5GHz and 2.4GHz bands. This will help determine if range is an issue. Use the WiFi band that provides a more stable connection.

Why Not Just Use 5GHz?

When speed is a concern, then you should use the 5GHz WiFi band. Not many devices will benefit from the speed 5GHz offers.

A more technical explanation is that the more devices you connect to the 5GHz WiFi band, means the more devices that are attempting to hog more of your internet bandwidth. Say you have 10 devices connected to your 5GHz WiFi band. Now, say they are all actively transmitting and requesting data. In the end, your connections will most likely result in slower speeds for all your devices across all WiFi bands.

According to the Experts

Whenever a device connects to your Wi-Fi network, it has to fight with other devices for bandwidth (internet speed). A TV streaming Netflix, a laptop downloading, an Xbox Live gaming session — they all want the fastest connection. But there’s only so much bandwidth to go around. Your bandwidth is stretched thin, resulting in a slower connection.

Google 

However, since the router’s wireless channel is shared between all the wireless clients, adding clients will inevitably result in slower network access for all clients. This will be particularly noticeable if some of the clients are using a lot of wireless bandwidth, for example by watching a video or doing a torrent download. Therefore, the maximum number of wireless clients that will operate satisfactorily while connected to the same router will vary depending on what the devices are used for. It will also vary depending on how much wireless congestion or interference are present in the location where the router is installed.

Netgear

Final Thoughts

Not all WiFi routers are created equal. Most WiFi AC routers will have more bandwidth capabilities than WiFi N routers. You will still end up seeing slow down issues on AC devices, but the effects will be much less than that of WiFi N routers. If speed is a concern, then manage which devices use your 2.4GHz and 5GHz WiFi bands. If you still see some issues, look into updating your WiFi router to an AC1200 or better device.

cloudflareDNS2018

Nearly everything on the Internet starts with a DNS request. DNS is the Internet’s directory. Click on a link, open an app, send an email and the first thing your device does is ask the directory: Where can I find this?

Unfortunately, by default, DNS is usually slow and insecure. Your ISP, and anyone else listening in on the Internet, can see every site you visit and every app you use — even if their content is encrypted. Creepily, some DNS providers sell data about your Internet activity or use it target you with ads.

- Cloudflare

On April Fool's Day of 2018 Cloudflare announced their brand-new DNS service. The statement above explains the importance of having a good DNS service. Not all DNS providers are created equal. Cloudflare's DNS service is almost 20ms faster than Google's DNS service. We here at QCTechJunkie have updated all of our devices to use Cloudflare over Google. And there is no real reason why you should not at least try Cloudflare's DNS yourself.

One reason to use Cloudflare's DNS, over the one your ISP probably has you using, is for data privacy. According to Cloudflare:

We will never log your IP address (the way other companies identify you). And we’re not just saying that. We’ve retained KPMG to audit our systems annually to ensure that we’re doing what we say.

Frankly, we don’t want to know what you do on the Internet—it’s none of our business—and we’ve taken the technical steps to ensure we can’t.

Setup Cloudflare’s DNS

Setup is easy, as long as you know where to look. In fact Cloudflare will recognize the device you are on when you go to https://1.1.1.1/. From there they will provide you with basic instructions to setup up your device to use their service. But, why do that when we will cover the major four platforms for you right here:

Windows

  1. Click on the Start menu, then click on Control Panel.
  2. Click on Network and Internet.
  3. Click on Change Adapter Settings.
  4. Right click on the Wi-Fi network you are connected to, then click Properties.
  5. Select Internet Protocol Version 4 (or Version 6 if desired).
  6. Click Properties.
  7. Write down any existing DNS server entries for future reference.
  8. Click Use The Following DNS Server Addresses.
  9. Replace those addresses with the 1.1.1.1 DNS addresses:
    • For IPv4: 1.1.1.1 and 1.0.0.1
    • For IPv6: 2606:4700:4700::1111 and 2606:4700:4700::1001
  10. Click OK, then Close.
  11. Restart your browser.

MacOS

  1. Open System Preferences.
  2. Search for DNS Servers and select it from the dropdown.
  3. Click the + button to add a DNS Server and enter 1.1.1.1
  4. Click + again and enter 1.0.0.1 (This is for redundancy.)
  5. Click + again and enter 2606:4700:4700::1111 (This is for redundancy.)
  6. Click + again and enter 2606:4700:4700::1001 (This is for redundancy.)
  7. Click Ok, then click Apply.

Android

  1. From your Android’s app list, open the Settings app.
  2. Under the Wireless & networks section, tap Wi-Fi,
  3. Long press your preferred network in the list until a context menu appears.
  4. Tap the Modify network, then tap Advanced options.
  5. Tap Advanced options, then tap IP Settings.
  6. Change Dynamic to Static.
  7. Using your router’s configuration, enter your device’s IP address and gateway.
  8. Tap the DNS field, then erase the number in the field.
  9. In the DNS 1 field, enter 1.1.1.1
  10. In the DNS 2 field, enter 1.0.0.1 (This is for redundancy.)
  11. Tap Save.

iPhone

  1. From your iPhone’s home screen, open the Settings app.
  2. Tap Wi-Fi, then tap your preferred network in the list.
  3. Tap Configure DNS, then tap Manual.
  4. If there are any existing entries, tap the - button, and Deletenext to each one.
  5. Tap the + Add Server button, then type 1.1.1.1
  6. Tap the + Add Server button again, then type 1.0.0.1. This is for redundancy.
  7. Tap the + Add Server button again, then type 2606:4700:4700::1111. This is for redundancy.
  8. Tap the + Add Server button again, then type 2606:4700:4700::1001. This is for redundancy.
  9. Tap the Save button on the top right.

Home Setup

If you want to make things easier for all your devices on your home network, you can configure your router to use Cloudflare's DNS. Doing this will eliminate the need to configure each device on your home network. Below is the general setup for most routers:

  1. Connect to your preferred wireless network.
  2. Enter your router’s gateway IP address in your browser.
  3. If prompted, fill in your username and password. This information may be labeled on the router. Default username and passwords can be found here.
  4. In your router’s configuration page, locate the DNS server settings.
  5. Write down any existing DNS server entries for future reference.
  6. Replace those addresses with the 1.1.1.1 DNS addresses:
    • For IPv4: 1.1.1.1 and 1.0.0.1
    • For IPv6: 2606:4700:4700::1111 and 2606:4700:4700::1001
  7. Save your settings, then restart your browser.

Note: Configurations for your router maybe different, consult your routers owners manual for more information.

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