STA+AP on same radio fails on DFS channel 25.12.1

Installing and Using OpenWrt Network and Wireless Configuration
1

Continuing the discussion from STA+AP on same radio fails on DFS channel 25.12.0-rc1:

I also experienced on my WAX202 configured as STA+AP after rebooting my upstream AP. The AP on the WAX202 did not return, and my log was filled with:

[Mar 24, 2026, 11:47:06 PM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Mar 24, 2026, 11:47:11 PM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Mar 24, 2026, 11:47:11 PM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Mar 24, 2026, 11:47:12 PM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Mar 24, 2026, 11:47:12 PM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Mar 24, 2026, 11:47:13 PM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Mar 24, 2026, 11:47:13 PM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Mar 24, 2026, 11:47:14 PM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Mar 24, 2026, 11:47:14 PM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Mar 24, 2026, 11:47:18 PM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Mar 24, 2026, 11:47:19 PM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Mar 24, 2026, 11:47:19 PM EDT] daemon.notice: hostapd: handle_probe_req: send failed
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2

Still occurring on 25.12.2 after a reboot of the upstream AP, the downstream STA returned, but not the downstream AP.

[Apr 4, 2026, 6:51:55 AM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Apr 4, 2026, 6:52:02 AM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Apr 4, 2026, 6:52:02 AM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Apr 4, 2026, 6:52:02 AM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Apr 4, 2026, 6:52:06 AM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Apr 4, 2026, 6:52:08 AM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Apr 4, 2026, 6:52:09 AM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Apr 4, 2026, 6:52:18 AM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Apr 4, 2026, 6:52:18 AM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Apr 4, 2026, 6:52:27 AM EDT] daemon.notice: hostapd: handle_probe_req: send failed
[Apr 4, 2026, 6:52:27 AM EDT] daemon.notice: hostapd: handle_probe_req: send failed

A restart of the radio works and is a workaround (if one can access thru the STA).