Check clients per radio and per access point against your design target, and see how much spare association capacity is left.
Association capacity is a per-radio property, not a per-AP one, so a dual-band AP has roughly twice the client budget of a single-radio one. Comparing the actual load per radio against the design target shows both the current pressure and the spare capacity for growth or an AP outage. Radios keep accepting associations well past the point where airtime runs out, so the association count is the earliest warning that a floor is over-subscribed.
Client Density
clients per radio = clients ÷ (APs × serving radios); utilisation = clients per radio ÷ design target.
clients per radio = clients ÷ (APs × serving radios); utilisation = clients per radio ÷ design target. Association capacity is a per-radio property, not a per-AP one, so a dual-band AP has roughly twice the client budget of a single-radio one. Comparing the actual load per radio against the design target shows both the current pressure and the spare capacity for growth or an AP outage.
Radios keep accepting associations well past the point where airtime runs out, so the association count is the earliest warning that a floor is over-subscribed.
This calculator takes 4 inputs: Concurrent associated clients, Access points, Serving radios per AP, Design target per radio. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.