Automatic channel and power changes during production
Radio resource management can change an access point's channel or power while production runs, and a channel change disconnects every client on that radio.
On this page5 sections
Is this your problem? It presents like this
- Every client on one radio drops at once, and the access point log shows a channel change with no radar event.
- Drops line up with the times the channel algorithm runs, or follow bursts of interference.
- Roaming shifts after a power change. Clients cling to an access point that got louder, or lose one that got quieter.
- The live channel and power plan no longer matches the design, and it changes from week to week.
- Trouble starts after the RF neighborhood changes, such as new equipment or a new network next door.
- Bands
- 2.4 GHz5 GHz5 GHz DFS6 GHz
Why it happens
Radio management is tuned for offices, where a better channel is worth a blip. One vendor’s automatic channel planning runs by default every 10 minutes1, and its documentation states that whenever an AP’s channel is changed clients will be briefly disconnected. Another vendor pushes its plan nightly, at around 3:00 a.m.2, yet still changes channels during the day for radar and interference, and says the channel change is disruptive to wireless clients. A cloud-managed platform’s documentation agrees that changing channels is disruptive to client traffic.
The vendors know this, and they add hysteresis and schedules so the algorithm moves less often. In scheduled mode, the vendor with the 10-minute default still recommends running at least twice a day. Fewer changes is not zero changes, and the algorithm cannot see your production schedule.
Power changes are quieter, and they move roaming boundaries. The nightly system may also raise power on neighboring access points to compensate for the loss of a neighbor AP. NIST cautions that increased transmit power is not necessarily an improvement, and recommends tuning to a link budget with a defined margin. An optimizer that cannot see production should not be changing your radios during it.
How to confirm it
- Pull the channel and power change history for the access points in the area, and line each change up with the drop timestamps.
- Note the reason logged for each change, such as interference, utilization, radar, coverage, or a scheduled run.
- Check the radio management schedule, sensitivity, and whether event-driven changes are enabled.
- Compare the current channel and power of each access point with the design plan.
The fix
- Fix channel and power on radios that serve time-sensitive clients.
- Schedule automatic channel planning for planned downtime, and limit how often it may run.
- Raise the change threshold so only large improvements trigger a move.
- Set power limits so automatic power changes cannot reshape roaming boundaries.
Prevent it at design time
- Decide which radios may be optimized automatically and which are locked, and write it into the design.
- Retest roaming after any power change the radio management system makes.
- Alert on channel and power changes during production hours.
About this page
Built from 4 sources: 1 standards body or lab and 3 vendor documents. Researched and drafted with AI assistance, then reviewed and approved by Ben Rutter on . How pages are made
- First published
- Last updated
Change history (1)
- First published
Cite this page
Plain
Ben Rutter. "Automatic channel and power changes during production." OT Wireless, published October 5, 2026. https://otwireless.com/causes/automatic-channel-and-power-changes/
APA 7
Rutter, B. (2026, October 5). Automatic channel and power changes during production. OT Wireless. https://otwireless.com/causes/automatic-channel-and-power-changes/
BibTeX
@misc{rutter2026automaticchannelandpowerchanges,
author = {Rutter, Ben},
title = {{Automatic channel and power changes during production}},
year = {2026},
howpublished = {\url{https://otwireless.com/causes/automatic-channel-and-power-changes/}},
organization = {OT Wireless},
}