Ask wifi-U: What Is Minimum RSSI?

What Is Minimum RSSI — and Why Does It Matter for Wi-Fi Roaming?

Ever had a Wi-Fi client stay connected to an access point even when a much stronger AP is just a few feet away? That’s a sticky client — and it can lead to poor performance, dropped connections, and a frustrating user experience.

In this video, I explain Minimum RSSI and how it can help improve Wi-Fi roaming.

🔹 Minimum RSSI defines the weakest signal level an AP will accept from a client.
🔹 When the client falls below that threshold, the AP can disconnect it.
🔹 The client can then reconnect to a stronger access point.

For example, setting a threshold around -70 dBm can help remove clients with weak signals.

But there’s an important point:

👉 Minimum RSSI tells the client when it needs to leave — it does NOT tell the client which AP to choose next.

That means Minimum RSSI works best when you already have a properly designed Wi-Fi network, with good AP placement and appropriate coverage overlap.

This is especially important when designing and tuning Ubiquiti UniFi networks.

🎯 Design First. Tune Second. And if you want to go beyond YouTube videos and actually learn how to design, configure, troubleshoot, and optimize UniFi networks, check out the training at wifi-U.

🎓 Learn it. Build it. Troubleshoot it. Master it.

wifi-U offers instructor-led and self-directed training covering Wi-Fi, routing & switching, VLANs, security, and UniFi networking.

👉 Ready to level up your networking skills? Check out the classes at wifi-U.com https://learn.wifi-u.com/collections

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