The Wi-Fi Performance Company

KPI Benchmarks

Connection Quality KPIBenchmarkDescription
RSSI or Signal Strength > -67 dBmTo achieve the fastest performance, clients need a strong signal. Expressed as a negative number, the closer to zero you are, the better.
Signal to Noise Ratio (SNR)> 25 dBSome environments are crowded with other signals we call “noise”. For a good connection, your signal should be “louder” than the noise by this margin.
Client Count per AP< 30Like rush hour traffic, too many clients sharing the airwaves will lead to slowdowns.
Channel Utilization< 40%Like cars sharing the highway, there are only so many lanes with only so much capacity. When those lanes or channels begin to fill up, Wi-Fi traffic slows down.
Data Rate> 12 Mb/sDenotes the transmission speed, or the number of bits per second transferred. The actual throughput speed for the user is usually less than the reported data rate. Low data rates may be due to legacy clients, networks or interference.
Retry Rate< 40%When the transmission can’t get through the first time due to interference or congestion, clients and access points will retry until they do. Rather than disconnect you, Wi-Fi will automatically slow down the transmission in its attempt to get it through.
Wi-Fi Experience KPIBenchmarkDescription
Throughput> 5 Mb/sThis will depend on what you are trying to accomplish. As a point of reference, Netflix suggests 5 Mb/s of Throughput for a good viewing experience.
Packet Loss< 1%Refers to the failure of packets to reach their destination, most often due to interference or low signal level. The result is a network retry (see above).
Ping (Latency)< 150 msTime it should take for some packets to reach a server and come back. High latency typically points to network congestion.
Jitter< 10 msMeasures the latency between voice packets. When the latency increases in the form of jitter, voice over Wi-Fi sounds “choppy”. The increase in Jitter is also reflected in a lower MOS score (see below). Both interference and network congestion lead to an increase in Jitter.
Web Page Download Time< 5000 msTime it should reasonably take to load a typical web page, like google.com. Beyond 5 seconds, the experience begins to feel slow, which may be caused by either local network or Internet congestion.
Mean Opinion Score (MOS)> 3.6Based on a 4 point scale, MOS is a score that characterizes the quality of a voice conversation over Wi-Fi. Interference and congestion will lower the score.