Block Wi-Fi interference for UniFi: A step by step guide

Wi-Fi interference is quite common. It leads to reduced signal quality and connectivity issues. Especially in densely populated areas where multiple networks operate close to eachother.

It's frustrating but luckily it can be fixed with the right tools and aproach.

Let's dive it!

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🚨 Before we dive in, please don't self-host your UniFi Controller if you take care of client networks. Sooner or later this will cause issues! It's fine for home users, but definitely not recommended for IT service businesses and MSPs. If you want secure, reliable and a scalable hosting solution check out UniHosted.

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Table of Contents

• Identifying the Source of Interference
• Selecting the Right Channel
• Adjusting Transmit Power
• Upgrading to 5 GHz
• Physical Adjustments
• Keeping Firmware Updated
• Conclusion

Identifying the Source of Interference

Interference can come from various sources, including neighboring Wi-Fi networks or household appliances. Identifying the source is the first step towards mitigation.

The UniFi Controller offers tools for monitoring your network's performance. By analyzing the Wi-Fi environment, you can identify overlapping channels and signal strengths of neighboring networks.

Selecting the Right Channel

One of the most effective ways to reduce interference is by selecting the optimal Wi-Fi channel. Most networks operate within the 2.4 GHz and 5 GHz bands. The UniFi Controller's RF environment feature can help you identify the least congested channels.

In the 2.4 GHz band, channels 1, 6, and 11 are preferred as they don't overlap with each other. In the 5 GHz band, there are more non-overlapping channels available, offering greater flexibility.

Adjusting Transmit Power

Adjusting the transmit power of your UniFi access points can also help in managing interference. Sometimes, reducing the power can prevent your signal from overlapping with neighboring networks.

On the other hand, increasing power in certain scenarios can help in overpowering external interference sources. This adjustment should be done carefully to avoid causing even more interference.

Upgrading to 5 GHz

If you're currently using the 2.4 GHz band, consider switching to 5 GHz. This band is typically less crowded and offers more non-overlapping channels, making it a better choice for environments with many Wi-Fi networks.

UniFi access points often support dual-band operations, allowing devices to switch to the most suitable band automatically.

Physical Adjustments

The placement of your UniFi access points can significantly impact the network's performance. Ensure they are placed optimally, away from metal objects, thick walls, and other obstructions. Sometimes, a slight adjustment in positioning can lead to a noticeable improvement in signal quality.

Keeping Firmware Updated

Ensure that your UniFi devices are running the latest firmware. Updates often include improvements and fixes that can enhance the device's ability to handle interference and improve overall network performance. At UniHosted, we do this for you.

Conclusion

Wi-Fi interference is frustrating, but it's manageable. UniFi provides a few tips and tricks to help you identify and mitigate interference sources.

At UniHosted, we specialize in hosting UniFi Controller in the cloud, providing an added layer of management and support to ensure your network operates at its best.

If you would like me to personally walk you through UniHosted, you can schedule a call with me here.