Sophos Wireless: How Many Clients Can I Connect to an APX?

Disclaimer: This information is provided as-is for the benefit of the Community. Please contact Sophos Professional Services if you require assistance with your specific environment.


This is probably one of the most frequently asked questions, but one for which there’s not always a short answer.

Of course, there’s a theoretical technical limit for the maximum number of concurrent associations, 128 per radio (so for a dual-radio model, 128+128=256). However, plan your network based on that; neither you nor your users will be very happy.

The following does not replace a site survey but gives you some guidance as to the recommended number of clients for each APX model based on three factors:

  1. Environment
  2. Type of devices being used
  3. Type of apps/usage

A few examples:

  • Suppose you're deploying APs in a school. In that case, the number of users and the usage in communal areas, such as the cafeteria, will probably differ greatly from the usage in each classroom.
  • In an airport lounge, the type of usage and the users' expectations will differ greatly from a cafe or restaurant.

If you're a customer, we would advise you to work with your local Sophos partner to plan your deployment. If you're a Sophos partner and don't have the tools to survey, your local Sophos SE or (in some regions) your distributor can provide further help.

Updated RR
[edited by: Erick Jan at 12:43 AM (GMT -8) on 11 Jan 2024]
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