In large multi-AP environments, aggressive roaming prevents devices from clinging to an AP that provides poor performance despite having a "visible" connection.
| Symptom | Likely Cause | Immediate Action | |---------|--------------|------------------| | Client roams 3+ times per minute | Aggressive driver setting | Check adapter → Roaming Aggressiveness → Low | | AP logs show constant reassoc | Overlap + low roam delta | Increase roam delta to 10 dB on controller | | Voice calls chop while walking | Client scanning too often | Lower DTIM period? No – instead set Beacon 100ms + disable 802.11k | | Only one OS (e.g., Linux) roams hard | Default kernel param | iwconfig wlan0 roam off or set threshold to -80 dBm |
When signal degradation is detected, the adapter scans for better alternatives every second until a stronger RSSI (Received Signal Strength Indication) is found.
In large multi-AP environments, aggressive roaming prevents devices from clinging to an AP that provides poor performance despite having a "visible" connection.
| Symptom | Likely Cause | Immediate Action | |---------|--------------|------------------| | Client roams 3+ times per minute | Aggressive driver setting | Check adapter → Roaming Aggressiveness → Low | | AP logs show constant reassoc | Overlap + low roam delta | Increase roam delta to 10 dB on controller | | Voice calls chop while walking | Client scanning too often | Lower DTIM period? No – instead set Beacon 100ms + disable 802.11k | | Only one OS (e.g., Linux) roams hard | Default kernel param | iwconfig wlan0 roam off or set threshold to -80 dBm |
When signal degradation is detected, the adapter scans for better alternatives every second until a stronger RSSI (Received Signal Strength Indication) is found.