Software & AppsOperating SystemLinux

How To Set WiFi Driver to Prefer 5 GHz Channel in Ubuntu

Ubuntu 14

In today’s digital world, a stable and fast internet connection is paramount. One way to improve your WiFi connection is by setting your WiFi driver to prefer the 5 GHz channel over the 2.4 GHz channel. This article will guide you through the process of achieving this in Ubuntu.

Quick Answer

To set your WiFi driver to prefer the 5 GHz channel in Ubuntu, you can use the Network Connections settings, edit the system-connections file, use an Android app or Linux tools, or change the settings on your router. These methods allow you to prioritize the 5 GHz band for faster speeds and a more stable connection.

Why Prefer 5 GHz Over 2.4 GHz?

The 5 GHz WiFi band offers several advantages over the 2.4 GHz band. It provides faster data rates at a shorter distance, making it ideal for streaming and downloading large files. Moreover, it is less crowded and less prone to interference from other devices.

However, it’s important to note that the 5 GHz band has a shorter range compared to 2.4 GHz. This means that if your device is far from the router, you might get a stronger signal using the 2.4 GHz band.

Method 1: Using Network Connections

The first method involves using the Network Connections settings in Ubuntu:

  1. Click on the network icon in your system tray and select “Network Connections.”
  2. Find and select your wireless network from the list and click on the “Edit” button.
  3. In the wireless tab, change the mode from “Infrastructure” to “Ad-hoc.”
  4. Choose the 5 GHz band from the available options.
  5. Click “Save” to apply the changes.

Note: If you encounter an authentication error when trying to save the settings, it may be due to the security settings not being compatible with Ad-hoc mode. In this case, you may need to try an alternative method.

Method 2: Editing system-connections file

The second method involves editing the system-connections file corresponding to your network:

  1. Open a terminal by pressing Ctrl+Alt+T.
  2. Run the following command to edit the system-connections file:
sudo nano /etc/NetworkManager/system-connections/<your_network_name>

Replace <your_network_name> with the name of your WiFi network.

  1. Under the [wifi] section, add or edit the band field to specify the desired frequency. For example, use band=a for 5 GHz or band=bg for 2.4 GHz.
  2. Save the file by pressing Ctrl+O, then exit nano by pressing Ctrl+X.
  3. Restart the network manager to apply the changes:
sudo systemctl restart network-manager

Note: The systemctl command is used to control the systemd system and service manager. In this case, it is used to restart the network manager service.

Method 3: Using Android app or Linux tools

This method involves using an Android app like “WiFi Analyzer” or Linux tools to find the BSSID (MAC address) of the 5 GHz network you want to connect to:

  1. Use an Android app like “WiFi Analyzer” to find the BSSID (MAC address) of the 5 GHz network you want to connect to.
  2. Open a terminal and run the following command to edit your network connection settings:
nm-connection-editor
  1. Find and select your network from the list, then click on the “Edit” button.
  2. In the Identity tab, enter the BSSID of the 5 GHz network.
  3. Save the settings and try reconnecting to your network.

Method 4: Router settings

The last method involves changing the settings on your router:

  1. Access your router’s settings page through a web browser by entering the router’s IP address.
  2. Look for the wireless settings section and check if there is an option to prioritize the 5 GHz band over the 2.4 GHz band.
  3. Set the appropriate option to prefer the 5 GHz band.
  4. Save the settings and restart your router if necessary.

Remember that these methods may not work in all cases, as it depends on the capabilities of your WiFi card and the configuration of your network. Additionally, ensure that your router is set up properly and that you have a stable connection to the 5 GHz network before making any changes.

By following these steps, you should be able to set your WiFi driver to prefer the 5 GHz channel in Ubuntu. This can help you achieve faster speeds and a more stable connection, especially in environments where the 2.4 GHz band is crowded or prone to interference.

Can I use these methods to set my WiFi driver to prefer the 5 GHz channel in other Linux distributions?

Yes, these methods should work in other Linux distributions as well, as long as you have the necessary permissions and access to the network settings.

How can I check if my WiFi card supports the 5 GHz band?

You can check the specifications of your WiFi card or consult the manufacturer’s website for information on supported bands and frequencies.

What should I do if I don’t see the option to prioritize the 5 GHz band in my router settings?

If your router does not have the option to prioritize the 5 GHz band, you may need to check for firmware updates or consider upgrading to a router that supports this feature.

Will setting my WiFi driver to prefer the 5 GHz channel improve my internet speed?

Setting your WiFi driver to prefer the 5 GHz channel can potentially improve your internet speed, especially in environments with less interference. However, other factors such as your internet service provider’s speed and the overall network congestion can also affect your internet speed.

Can I connect to both the 2.4 GHz and 5 GHz bands simultaneously?

Yes, if your device supports it, you can connect to both the 2.4 GHz and 5 GHz bands simultaneously. This can provide you with more flexibility in choosing the best network for your needs.

What should I do if I experience connection issues after making these changes?

If you experience connection issues after making these changes, you can try reverting the settings back to their original state or restarting your router and device. Additionally, you can consult online forums or seek technical support for further assistance.

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