What Does Wifi Signal Strength Mean (RSSI)

Wifi signal Strength is measured in RSSI which stands for “Received Signal Strength Indicator.”

This is shown in the simpson and partners app underneath "wifi network settings"


That’s just a fancy way of saying “how strong or weak your Wi-Fi signal is.”

Think of it like this:

  • Strong RSSI (closer to 0) → like someone talking to you right next to your ear — easy to hear, clear signal, fast Wi-Fi.
  • ⚠️ Weak RSSI (big negative number) → like someone shouting from the other end of the house — hard to hear, choppy connection, slow Wi-Fi.

RSSI is usually shown as a negative number (for example -40 or 80)
👉 The closer the number is to zero, the better the signal.
👉 The farther away (like -80 or -90) the weaker the signal.

An RSSI of -127 means that your charger is connected via an ethernet connection, which is hardwired and stable

Here’s a quick cheat sheet:

🧠 Simple way to remember:
The higher (less negative) the number, the better your Wi-Fi will work.

📍 If you’re seeing weak signal, it usually means:

  • You’re too far from the router,
  • There are walls or obstacles in the way,
  • Or something’s interfering with the signal.