With hostapd -v hostapd v2.7-devel-hostap_2_6-871-g0b287a2+ User space daemon for IEEE 802.11 AP management, IEEE 802.1X/WPA/WPA2/EAP/RADIUS Authenticator Copyright (c) 2002-2017, Jouni Malinen <j@xxxxx> and contributors For my wifi device, ALFA AWUS052NH frequencies include iw list ... Frequencies: ... * 5745 MHz [149] (30.0 dBm) * 5755 MHz [151] (30.0 dBm) * 5765 MHz [153] (30.0 dBm) * 5785 MHz [157] (30.0 dBm) * 5795 MHz [159] (30.0 dBm) * 5805 MHz [161] (30.0 dBm) * 5825 MHz [165] (30.0 dBm) ... Supported commands: I've done a WiFi scan, using a phone, of those channels. Atm, 0 usage of any of them where I'm located. I.e., no congestion which might prevent 40MHz ops. I've added those to the allowed channel selection set, chanlist=149 151 153 157 159 161 165 My ht capabilities are set as ht_capab=[HT40+][GF][SHORT-GI-40][TX-STBC][RX-STBC2][MAX-AMSDU-3839] I enable ACS channel=acs_survey and restart. I end up connected to Channel=149, and functional, but logs show a bunch of ACS-related errors Mar 29 11:55:25 test hostapd[5894]: wlp0s31d1u3: interface state ENABLED->DISABLED Mar 29 11:55:25 test hostapd: wlp0s31d1u3: STA 10:31:d4:c3:22:a4 MLME: MLME-DEAUTHENTICATE.indication(10:31:d4:c3:22:a4, 1) Mar 29 11:55:25 test hostapd[5894]: wlp0s31d1u3: AP-STA-DISCONNECTED 10:31:d4:c3:22:a4 Mar 29 11:55:25 test hostapd[5894]: nl80211: disabling multicast to unicast failed with -16 (Device or resource busy) on interface wlp0s31d1u3 Mar 29 11:55:25 test hostapd[5894]: wlp0s31d1u3: AP-DISABLED Mar 29 11:55:25 test hostapd[5894]: wlp0s31d1u3: CTRL-EVENT-TERMINATING Mar 29 11:55:25 test hostapd[5894]: nl80211: deinit ifname=wlp0s31d1u3 disabled_11b_rates=0 Mar 29 11:55:26 test hostapd[13759]: Configuration file: /etc/hostapd/hostapd.conf Mar 29 11:55:26 test hostapd[13759]: wlp0s31d1u3: interface state UNINITIALIZED->COUNTRY_UPDATE Mar 29 11:55:26 test hostapd[13759]: ACS: Automatic channel selection started, this may take a bit Mar 29 11:55:26 test hostapd[13759]: wlp0s31d1u3: interface state COUNTRY_UPDATE->ACS Mar 29 11:55:26 test hostapd[13759]: wlp0s31d1u3: ACS-STARTED Mar 29 11:55:32 test hostapd[13759]: Failed to check if DFS is required; ret=-1 Mar 29 11:55:32 test hostapd[13759]: Failed to check if DFS is required; ret=-1 Mar 29 11:55:32 test hostapd[13759]: handle_probe_req: send failed Mar 29 11:55:32 test hostapd[13759]: Failed to check if DFS is required; ret=-1 Mar 29 11:55:32 test hostapd[13759]: Failed to check if DFS is required; ret=-1 Mar 29 11:55:32 test hostapd[13759]: handle_probe_req: send failed Mar 29 11:55:45 test hostapd[13759]: Failed to check if DFS is required; ret=-1 Mar 29 11:55:45 test hostapd[13759]: Failed to check if DFS is required; ret=-1 Mar 29 11:55:45 test hostapd[13759]: handle_probe_req: send failed Mar 29 11:55:45 test hostapd[13759]: Failed to check if DFS is required; ret=-1 Mar 29 11:55:45 test hostapd[13759]: Failed to check if DFS is required; ret=-1 Mar 29 11:55:45 test hostapd[13759]: handle_probe_req: send failed Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Channel 149 has insufficient survey data Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Channel 149 has insufficient survey data Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Channel 149 has insufficient survey data Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Survey is missing noise floor Mar 29 11:55:51 test hostapd[13759]: ACS: Channel 149 has insufficient survey data Mar 29 11:55:51 test hostapd[13759]: wlp0s31d1u3: ACS-COMPLETED freq=5745 channel=149 Mar 29 11:55:51 test hostapd[13759]: wlp0s31d1u3: interface state ACS->HT_SCAN Mar 29 11:55:52 test hostapd[13759]: Using interface wlp0s31d1u3 with hwaddr 02:d1:ff:34:15:10 and ssid "testMyWifi" Mar 29 11:55:52 test hostapd[13759]: nl80211: disabling multicast to unicast failed with -16 (Device or resource busy) on interface wlp0s31d1u3 Mar 29 11:55:52 test hostapd[13759]: wlp0s31d1u3: interface state HT_SCAN->ENABLED Mar 29 11:55:52 test hostapd[13759]: wlp0s31d1u3: AP-ENABLED and, afaict, there's no indication of 40MHz channel-pairing iwconfig wlp0s31d1u3 wlp0s31d1u3 IEEE 802.11 Mode:Master Tx-Power=30 dBm Retry short limit:7 RTS thr:off Fragment thr:off Power Management:off my config supposedly supports AP scanning, iw list | egrep -i "scan|acs" max # scan SSIDs: 4 max scan IEs length: 2257 bytes max # sched scan SSIDs: 0 max # scan plans: 1 max scan plan interval: -1 max scan plan iterations: 0 Device supports low priority scan. Device supports scan flush. Device supports AP scan. What's missing re: my ACS scan, and 40MHz usage? _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
