Channel Analysis partially broken in 25.12.x

Describe the bug

Channel Analysis scan breaks if you change 5GHz wifi to a different channel that is not the default of 36.

OpenWrt version

r33218-84484e5198

OpenWrt release

25.12-SNAPSHOT

OpenWrt target/subtarget

mediatek/filogic

Device

GL.iNet GL-MT6000

Image kind

Official downloaded image

Steps to reproduce

Tested with OpenWrt 25.12.5, and retested in new 25.12-SNAPHOT dated 9/13/2026 to be sure it's not fixed, Channel Analysis is partially broken.

WiFi 5GHz - channel left default at 36 - channel analysis scan works as intended.

WiFi 5GHz - channel set to Auto, or to any other channel (e.g. 56) - scan is broken.

SSH in and try scan after setting channel 56 reveals:

root@OpenWrt:~# iw dev phy1-ap0 scan
command failed: Resource busy (-16)

Actual behaviour

When you change the wifi channel from default of 36 the 5GHz the scan does not work.

Expected behaviour

To scan and display all wifi devices.

Additional info

Clean config was used.

WED was enabled/disabled with reboots in between, it did not make a difference.

Screenshots below of channel analysis results at /cgi-bin/luci/admin/status/channel_analysis.

5GHz scan on (default) channel 36:

5GHz scan on channel 56:

Diffconfig

Terms

• I am reporting an issue for OpenWrt, not an unsupported fork.