Widocznie zbyt mało danych podałem.
Openwrt najnowsze 18.06, 40mhz jak widać działa (wymuszenie nic nie zmienia).
Telefon to galaxy s8 - teoretycznie może obsłużyć nawet ac i 5ghz, więc czemu by nie 40mhz? Dodam, że na każdym innym urządzeniu i laptopie jest tak samo.
W obecnym laptopie mam kartę Intel Centrino Advanced-N 6205 która obsługuje 300mbit
144mbit to prędkość na jaką się komunikuje-synchronizuje klient z routerem, a nie prędkość faktyczna, co chyba jest oczywiste. Mając 300mbit prędkość mogłaby być wyższa, przynajmniej na krótkich dystansach.
Log po poleceniu wifi:
Sat Sep 8 18:13:30 2018 daemon.notice hostapd: wlan0: interface state ENABLED->DISABLED
Sat Sep 8 18:13:30 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 18:1e:78:58:32:8f
Sat Sep 8 18:13:30 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED a4:4e:31:2b:d0:84
Sat Sep 8 18:13:30 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 44:91:60:41:e6:5d
Sat Sep 8 18:13:30 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 4c:dd:31:cf:b7:08
Sat Sep 8 18:13:30 2018 daemon.notice hostapd: wlan0: AP-STA-DISCONNECTED 00:22:58:50:59:4e
Sat Sep 8 18:13:30 2018 daemon.notice hostapd: wlan0: AP-DISABLED
Sat Sep 8 18:13:30 2018 daemon.notice hostapd: wlan0: CTRL-EVENT-TERMINATING
Sat Sep 8 18:13:30 2018 daemon.notice hostapd: nl80211: deinit ifname=wlan0 disabled_11b_rates=0
Sat Sep 8 18:13:30 2018 kern.info kernel: [ 2193.651464] device wlan0 left promiscuous mode
Sat Sep 8 18:13:30 2018 kern.info kernel: [ 2193.654960] br-lan: port 2(wlan0) entered disabled state
Sat Sep 8 18:13:30 2018 daemon.notice netifd: bridge 'br-lan' link is down
Sat Sep 8 18:13:30 2018 daemon.notice netifd: Interface 'lan' has link connectivity loss
Sat Sep 8 18:13:30 2018 daemon.notice netifd: Network device 'wlan0' link is down
Sat Sep 8 18:13:31 2018 daemon.notice netifd: radio0 (6856): sh: acs_survey: out of range
Sat Sep 8 18:13:31 2018 daemon.err hostapd: Configuration file: /var/run/hostapd-phy0.conf
Sat Sep 8 18:13:31 2018 kern.info kernel: [ 2194.517137] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Sat Sep 8 18:13:31 2018 kern.info kernel: [ 2194.538706] br-lan: port 2(wlan0) entered blocking state
Sat Sep 8 18:13:31 2018 kern.info kernel: [ 2194.542664] br-lan: port 2(wlan0) entered disabled state
Sat Sep 8 18:13:31 2018 kern.info kernel: [ 2194.548835] device wlan0 entered promiscuous mode
Sat Sep 8 18:13:31 2018 kern.info kernel: [ 2194.552921] br-lan: port 2(wlan0) entered blocking state
Sat Sep 8 18:13:31 2018 kern.info kernel: [ 2194.558004] br-lan: port 2(wlan0) entered forwarding state
Sat Sep 8 18:13:31 2018 daemon.notice netifd: bridge 'br-lan' link is up
Sat Sep 8 18:13:31 2018 daemon.notice netifd: Interface 'lan' has link connectivity
Sat Sep 8 18:13:31 2018 daemon.notice hostapd: wlan0: interface state UNINITIALIZED->COUNTRY_UPDATE
Sat Sep 8 18:13:31 2018 daemon.notice hostapd: ACS: Automatic channel selection started, this may take a bit
Sat Sep 8 18:13:31 2018 daemon.notice hostapd: wlan0: interface state COUNTRY_UPDATE->ACS
Sat Sep 8 18:13:31 2018 daemon.notice hostapd: wlan0: ACS-STARTED
Sat Sep 8 18:13:31 2018 kern.info kernel: [ 2194.663048] br-lan: port 2(wlan0) entered disabled state
Sat Sep 8 18:13:31 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:31 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:31 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:31 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:32 2018 daemon.notice netifd: bridge 'br-lan' link is down
Sat Sep 8 18:13:32 2018 daemon.notice netifd: Interface 'lan' has link connectivity loss
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:33 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:34 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:35 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:35 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:35 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:35 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:35 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:35 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:35 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:35 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:35 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:35 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:36 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:36 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:36 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:36 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:36 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:36 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:36 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:36 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:36 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:36 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: handle_probe_req: send failed
Sat Sep 8 18:13:37 2018 daemon.notice hostapd: wlan0: ACS-COMPLETED freq=2412 channel=1
Sat Sep 8 18:13:37 2018 daemon.err hostapd: Using interface wlan0 with hwaddr e8:de:27:4d:e5:cc and ssid "xxxxxx"
Sat Sep 8 18:13:38 2018 kern.info kernel: [ 2201.403570] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Sat Sep 8 18:13:38 2018 kern.info kernel: [ 2201.408979] br-lan: port 2(wlan0) entered blocking state
Sat Sep 8 18:13:38 2018 kern.info kernel: [ 2201.413876] br-lan: port 2(wlan0) entered forwarding state
Sat Sep 8 18:13:38 2018 daemon.notice netifd: bridge 'br-lan' link is up
Sat Sep 8 18:13:38 2018 daemon.notice netifd: Interface 'lan' has link connectivity
Sat Sep 8 18:13:38 2018 daemon.notice hostapd: wlan0: interface state ACS->ENABLED
Sat Sep 8 18:13:38 2018 daemon.notice hostapd: wlan0: AP-ENABLED
Sat Sep 8 18:13:38 2018 daemon.notice netifd: Network device 'wlan0' link is up
EDIT:
Ustawiłem kanał na sztywno, zniknęły błędy ACS (handle probe req) ale problem z 144mbit jest nadal.