Is anyone experiencing issues with configuring STA+AP on 5.4 GHz using DFS channels on 25.12.0-rc1?
hostapd: handle_probe_req: send failed
Along with DFS-CAC-COMPLETED and DFS -> ENABLED, but followed by DFS-PRE-CAC-EXPIRED.
(I recall this occurred in the past - issue 9298.)
I guess this post is missing device (especially wlan-) information 
(but yes, I'm seeing similar behaviour on (x86_64) main snapshots with mt7921 and mt7921au), which I'm still trying to get hold of).
Don't mark it solved, yet (it probably isn't for you - and I have bigger fish to fry, before I could debug/ bisect/ report this issue).
Just to add some substance for my experience (on x86_64 and mt7921au/ mt7921), last known-good r30767-d0c64a162a - known-broken current main/ HEAD (e.g. r32355-caef0a839a).
Same error on my Cudy WR3000H (mt7976cn) running on 25.12.0-rc1. I'm receiving this issue constantly every 30-60s.
[30 Dec 2025, 17:41:22 CET] daemon.notice: hostapd: handle_probe_req: send failed
But are you having the same issue?
STA + APs don't work?
I can't confirm it not working. The WR3000H operates as a mesh node, and I can connect to it successfully. Wi-Fi therefore appears to be functional, although it is generating error messages.
As rc2 was released, could you tell if the error was addressed? I quickly screened the changelog but I couldn't find this issue being possibly addressed. Maybe opening an issue on Github would make sense - if not already done.
No announcement in https://forum.openwrt.org/c/announcements/14.
It's not out, yet.
I can select it from my router as an updated, this is why I called it "released". Sorry if that was inaccurate.
The issue still persists in 25.12.0-rc2. To be clear (before anyone asks), the upstream is a 160 MHz channel. so aside from the congested band, I cannot use another channel in my radio domain. WAX202.
[Jan 8, 2026, 12:54:04 AM EST] daemon.notice: hostapd: phy1-ap0: DFS-CAC-COMPLETED success=1 freq=5580 ht_enabled=0 chan_offset=0 chan_width=3 cf1=5610 cf2=0 radar_detected=0
[Jan 8, 2026, 12:54:04 AM EST] daemon.notice: hostapd: phy1-ap0: interface state DFS->ENABLED
[Jan 8, 2026, 12:54:04 AM EST] daemon.notice: hostapd: phy1-ap0: AP-ENABLED
[Jan 8, 2026, 12:54:06 AM EST] daemon.notice: wpa_supplicant[1942]: phy1-sta0: Unknown event 54
[Jan 8, 2026, 12:54:06 AM EST] daemon.notice: hostapd: phy1-ap0: DFS-PRE-CAC-EXPIRED freq=5580 ht_enabled=0 chan_offset=0 chan_width=0 cf1=5580 cf2=0
[Jan 8, 2026, 12:54:06 AM EST] daemon.notice: wpa_supplicant[1942]: phy1-sta0: Unknown event 54
[Jan 8, 2026, 12:54:06 AM EST] daemon.notice: hostapd: phy1-ap0: DFS-PRE-CAC-EXPIRED freq=5600 ht_enabled=0 chan_offset=0 chan_width=0 cf1=5600 cf2=0
[Jan 8, 2026, 12:54:06 AM EST] daemon.notice: wpa_supplicant[1942]: phy1-sta0: Unknown event 54
[Jan 8, 2026, 12:54:06 AM EST] daemon.notice: wpa_supplicant[1942]: phy1-sta0: Unknown event 54
[Jan 8, 2026, 12:54:06 AM EST] daemon.notice: hostapd: phy1-ap0: DFS-PRE-CAC-EXPIRED freq=5620 ht_enabled=0 chan_offset=0 chan_width=0 cf1=5620 cf2=0
[Jan 8, 2026, 12:54:06 AM EST] daemon.notice: hostapd: phy1-ap0: DFS-PRE-CAC-EXPIRED freq=5640 ht_enabled=0 chan_offset=0 chan_width=0 cf1=5640 cf2=0
The STA connects, but the APs never come up. Last working was version 24.
Still any issue using 25.12.0-rc3.
Yes STA+AP still fails on RC3
[Jan 30, 2026, 1:49:38 PM UTC] user.notice: firewall: Reloading firewall due to ifup of wwan (phy1-sta0)
[Jan 30, 2026, 1:50:42 PM UTC] daemon.notice: hostapd: phy1-ap0: DFS-CAC-COMPLETED success=1 freq=5260 ht_enabled=0 chan_offset=0 chan_width=3 cf1=5290 cf2=0 radar_detected=0
[Jan 30, 2026, 1:50:42 PM UTC] daemon.notice: hostapd: phy1-ap0: interface state DFS->ENABLED
[Jan 30, 2026, 1:50:42 PM UTC] daemon.notice: hostapd: phy1-ap0: AP-ENABLED
[Jan 30, 2026, 1:50:44 PM UTC] daemon.notice: wpa_supplicant[1828]: phy1-sta0: Unknown event 54
[Jan 30, 2026, 1:50:44 PM UTC] daemon.notice: hostapd: phy1-ap0: DFS-PRE-CAC-EXPIRED freq=5260 ht_enabled=0 chan_offset=0 chan_width=0 cf1=5260 cf2=0
[Jan 30, 2026, 1:50:44 PM UTC] daemon.notice: wpa_supplicant[1828]: phy1-sta0: Unknown event 54
[Jan 30, 2026, 1:50:44 PM UTC] daemon.notice: wpa_supplicant[1828]: phy1-sta0: Unknown event 54
[Jan 30, 2026, 1:50:44 PM UTC] daemon.notice: hostapd: phy1-ap0: DFS-PRE-CAC-EXPIRED freq=5280 ht_enabled=0 chan_offset=0 chan_width=0 cf1=5280 cf2=0
[Jan 30, 2026, 1:50:44 PM UTC] daemon.notice: wpa_supplicant[1828]: phy1-sta0: Unknown event 54
[Jan 30, 2026, 1:50:44 PM UTC] daemon.notice: hostapd: phy1-ap0: DFS-PRE-CAC-EXPIRED freq=5300 ht_enabled=0 chan_offset=0 chan_width=0 cf1=5300 cf2=0
[Jan 30, 2026, 1:50:44 PM UTC] daemon.notice: hostapd: phy1-ap0: DFS-PRE-CAC-EXPIRED freq=5320 ht_enabled=0 chan_offset=0 chan_width=0 cf1=5320 cf2=0
[Jan 30, 2026, 1:50:45 PM UTC] daemon.notice: hostapd: handle_probe_req: send failed
[Jan 30, 2026, 1:50:45 PM UTC] daemon.notice: hostapd: handle_probe_req: send failed
[Jan 30, 2026, 1:50:45 PM UTC] daemon.notice: hostapd: handle_probe_req: send failed
[Jan 30, 2026, 1:50:46 PM UTC] daemon.notice: hostapd: handle_probe_req: send failed
Still the same issue on 25.12.0.rc4.
Seems to be working as of e94d4f2022
COMFAST CF-WR632AX
File on github if it breaks again.
@Robus What country code are you using?
IN and US are known to experience the issue.
(Removed solution checkmark.)
(Still broken here.)
I understand there have been issues filed.
All the wifi settings are posted in this issue. https://github.com/openwrt/openwrt/issues/21494
I will wait for the next rc to test as I'm not close to the router and updating to a snapshot feels a little too risky.
config wifi-device 'radio0'
option type 'mac80211'
option path 'platform/soc/18000000.wifi'
option band '2g'
option channel '1'
option htmode 'HE20'
config wifi-device 'radio1'
option type 'mac80211'
option path 'platform/soc/18000000.wifi+1'
option band '5g'
option channel 'auto'
option htmode 'HE160'
option cell_density '0'
option country 'PL'
config wifi-iface 'wifinet3'
option device 'radio1'
option mode 'ap'
option ssid 'My-AP-Name'
option encryption 'sae'
option network 'lan'
option key 'censored'
option ocv '0'
option disassoc_low_ack '0'
config wifi-iface 'trm_uplink3'
option device 'radio1'
option mode 'sta'
option network 'trm_wwan'
option ssid 'My-Uplink-Name'
option encryption 'sae-mixed'
option key 'censored'
option macaddr 'censored'
option disabled '0'
I experienced the issue previously, but it seems to now be working with the current snapshot. I experienced some instability but that might be an issue with my other configs. The above config is able to pull around 400Mbps on the CF-WR632AX.
You're not running the 25.12.0 release candidates. I'll test SNAPSHOT when I have an opportunity.