AccessAgility Blog

Measuring Client WiFi Health

[fa icon="calendar"] Dec 3, 2018 4:05:27 PM / by Blog Team

Blog Team

Clients that use WiFi can experience a number of issues that can affect the speed and performance of a wireless network. Below, we have listed out a variety of simple tests that give users a basic look at client health. While additional tests may be needed to fully troubleshoot an issue, the following tests are a great starting point.

 


RSSI / Signal Strength

Received signal strength (RSSI) is the power of the AP’s signal as it reaches the device (mobile phone, laptop, etc.).

Signal-RSSI

 


2nd Access Point Coverage

Second access point (AP) coverage allows users to roam from AP to AP without losing significant signal. This means that there is no interruption to the connection when the device is switching to the next closest AP.

2nd-ap-coverage

 


3rd Access Point Coverage

Third access point (AP) coverage ensures that at least three different APs can see a device. That allows for triangulation of devices location.

3rd-ap-coverage
 

Co-Channel Interference

Co-channel interference, or channel overlap, is concerned with the efficiency of the network design. If two or more adjoining APs are on the same channel frequency, this can cause interference issues that drastically effect performance.

channel-overlap
 

Download

Downloading a file from a server is a standard bandwidth test used to test the speed of the network’s connection. This can be done both locally and over the internet.

download
 

Upload

Uploading a file from a server is a standard bandwidth test used to test the speed of the network’s connection. This can be done both locally and over the internet.

upload
 

DNS

Domain Name Servers (DNS) act as translators for URLs and IP addresses. A person types in a URL (ex: google.com), then a request is sent to a DNS to pull the IP address that correlates with that URL. This allows users to type in named URLs instead of IP addresses to get to a particular website.

This test shows the time it takes for that request to go through.

DNS
 

Round Trip Time (RTT)

Round Trip Time (RTT) is the amount of time it takes for a device to connect to a server and get an acknowledgement back.

rtt
 

Jitter

Jitter is a variation in packet transit delay caused by queuing, contention and serialization effects on the path through the network.

jitter
 

Packet Loss

Packet loss tests how many, if any, packets are loss during transmission.

packet-loss
 

MOS Score

Mean Opinion Score (MOS) is a measure used in the domain of Quality of Experience and telecommunications engineering, representing overall quality of a stimulus or system.

MOS

 

Topics: WiFi Basics, WiFi Health

Blog Team

Written by Blog Team