Cisco Catalyst IW9167E Heavy Duty Access Point Configuration Guide, Release 26.1.x

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Cisco Catalyst IW9167E Heavy Duty Access Point Configuration Guide, Release 26.1.x

Modify the RSSI threshold

Updated: April 10, 2026

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Learn how to modify the Received Signal Strength Indicator (RSSI) threshold to optimize wireless network performance and ensure reliable connectivity for devices.

This procedure describes how to modify the RSSI threshold.

The Received Signal Strength Indicator (RSSI) measures the power of a wireless signal and is used to evaluate connection quality and strength in wireless networks.

You can set an RSSI threshold to define the minimum signal strength required for maintaining a reliable and optimal wireless connection.

Procedure

1.

Choose Network .

2.

Choose the desired Radio Type in the Wireless Interface .

3.

Choose Mobility and RSSI threshold to optimize wireless network performance and ensure seamless connectivity for devices.

4.

Select Advanced in Radio Configurations .

5.

Update RSSI Threshold from drop-down in the Mobility.

The RSSI Threshold values are:

  • -30 dBm to -50 dBm: Excellent signal strength (ideal for most applications).

  • -50 dBm to -60 dBm: Good signal strength (suitable for reliable connectivity).

  • -60 dBm to -70 dBm: Fair signal strength (may experience minor connectivity issues).

  • -70 dBm to -80 dBm: Weak signal strength (likely to experience performance issues).

  • Less than -80 dBm: Very poor signal strength (connectivity may fail or be highly unreliable).

The default RSSI threshold value is -70 dBm.
6.

Modify these parameters in the Antenna drop-down to optimize signal strength, quality, coverage, and performance in wireless networks:

  • Antenna Number : optimizes signal reception and coverage.

  • Antenna Gain : measured in dBi, indicates an antenna's ability to focus signals, with higher values signifying stronger, more directional transmission.

    In Antenna Gain field, you can:

    • Enter a value

    • Use the in-field arrows to select a value.

    Values range from 2 dBi to 12 dBi.

  • Tx Power : maintains signal quality without interference.

    Values range from 1 dBm to 30 dBm.

  • Spatial Stream : Improves throughput and performance.

    Values range from 1 to 8.