Fast Five Fixes

[Devin Akin]

I thought I would share a bit of my “quick and dirty” WiFi fixes with everyone.

1. Channels (AirCheck, Spectrum XT)
– More channels means more capacity
– 80MHz – small deployment with no interference
– 40MHz – with thick walls, one floor, and/or small deployments
– 20MHz – by default
– DFS – use it if possible, avoid ch144 unless all clients are 11ac
– Channel Utilization – keep it less than 20% for voice, 50% for video, and 80% for data

2. Required/Supported Data Rates (AirCheck, Protocol Analyzer)
– 24Mbps minimum
– Disable 11b rates for max performance
– More SNR is better, but 25dB is good
– TKIP – no, WMM – yes

3. CCI (Spectrum XT & Site Survey App)
– Too many 2.4GHz radios enabled
– Not enough 5GHz channels in reuse plan
– AP output power too high

4. SSIDs (AirCheck, Protocol Analyzer)
– 4 or less recommended
– Don’t hide SSIDs when possible

5. AP Placement & Mounting (visual inspection)
– Antenna type and orientation
– Proper mounting of APs

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