Someone recommends a Minimum RSSI value to improve roaming, and the same number is applied to every access point. Some users now disconnect at their desks. The setting can remove a weak connection without ensuring that the device has a usable alternative.

For a business office, the decision should begin with measured coverage and the affected devices. A configuration copied from another building is not evidence that it suits your meeting rooms, partitions or client hardware.

Concept illustration of a measured threshold pilot, not an authentic UniFi interface or an ITZ installation.

Understand what the setting actually does

Ubiquiti’s Minimum RSSI guidance describes RSSI from the access point’s perspective. When a client falls below the configured minimum, the AP disconnects it. The client then decides where to connect and may return to the same AP, producing repeated disconnections if no better option is available.

The vendor recommends careful testing and a site survey rather than treating one value as universal. This guide therefore does not prescribe a threshold. The useful question is whether the intended devices have a viable next connection at the places where the existing AP would remove them.

Establish a baseline before changing anything

Record where the fault occurs, the device type, the connected AP and the business task affected. Separate a stationary laptop dropping repeatedly from a phone failing during movement. Check whether the fault started after a configuration change and preserve the previous settings.

ITZ’s office Wi-Fi assessment and optimisation service can help evaluate coverage and configuration together. Request a Wi-Fi threshold pilot review with the affected locations, AP models and representative device types. Do not send controller passwords through the form.

Survey the transition area with real devices

Choose an agreed test route, such as a desk through a corridor into a meeting room. Include the employee phone or laptop that actually experiences the problem rather than relying on a technician’s device alone. Different clients can behave differently in the same location.

  • Record the AP serving the client at each point, the observed signal and whether a suitable neighbouring AP is available.
  • Repeat the route in both directions and pause at the normal work locations, including a desk near the coverage edge.
  • Run an authorised representative task, such as a test call, and note interruptions alongside the connection history.
  • Check any fixed devices in the pilot area that cannot simply move to obtain better coverage.

The office roaming checklist covers the wider investigation. Minimum RSSI is only one possible contributor; it does not correct missing coverage, unsuitable placement or every source of interference.

Make the pilot reversible

Define a limited AP/radio scope, an owner, a change window and the conditions for rollback. Record the original value and which settings are changed. Avoid changing several roaming or radio controls at once, because the result then becomes difficult to attribute.

Agree what success means before testing: fewer interruptions during the business task, no new repeated reconnects at stationary desks and acceptable behaviour on the representative clients. If the pilot fails, restore the agreed baseline and investigate the coverage gap. A graph showing a different connected AP is not enough if the call still fails.

Keep neighbouring network issues separate

Use the Teams call-quality guide when a call problem may involve the headset, application or upstream connection. Use the guest Wi-Fi isolation guide for access boundaries. Changing signal thresholds does not replace segmentation or authorise broader access.

The final configuration depends on the site, device population and supported software. Keep the survey observations, pilot outcome and rollback record so future support staff know why a setting was selected.

Review Your Wi-Fi Threshold Pilot

Bring ITZ the office layout, affected client examples and recent configuration changes. We can discuss a measured survey, a controlled pilot and practical acceptance criteria. Review Your Wi-Fi Threshold Pilot through the contextual form below.

Official vendor guidance reviewed on 29 October 2026. Examples describe proposed checks, not client case studies.