In a busy area multiple WiFi Routers and Access Points may cause co-channel Interference (CCI) and adjacent channel interference (ACI). This is pure physics, in short simplified description: if two APs are using the same channel that means that they are using the same frequency and the waves areĀ interfering.

Source: https://commons.wikimedia.org/wiki/File:Waventerference.gif

So what can you do?

Choose a channel that is empty or where (and around) the signal level is the lowest.

There are tons of WiFi info Android tools around, and you can download tools for your PC. (iOS does not give this level of access to the WiFi to Apps.)
If you don’t want to install any app, you can open a CMD prompt and use the following command to list all the Access Points, actually all transmitting devices as there may be more under the same SSID.

The result will be something like this:

Check the Signal and the Channel lines and choose a free space.

 

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.