All: Add some debug info in mac80211, i can get data packet in __ieee80211_rx_handle_packet 4053 if (ieee80211_is_mgmt(fc)) { 4054 mac80211_dbg(local, RX, "mac80211 mgmt packet\n"); 4055 /* drop frame if too short for header */ 4083 } else if (ieee80211_is_data(fc)) { 4084 mac80211_dbg(local, RX, "mac80211 data packet\n"); 4085 struct sta_info *sta, *prev_sta; with ping packet log: [ 8996.617367] mac80211 data packet [ 8996.622783] mac80211 mgmt packet [ 8996.725036] mac80211 mgmt packet [ 8996.820829] mac80211 data packet [ 8996.829383] mac80211 mgmt packet [ 8996.931682] mac80211 mgmt packet [ 8997.033052] mac80211 mgmt packet [ 8997.135956] mac80211 mgmt packet And station will deauth from ap with PRE_AUTH_NOT_VALID: [ 8998.621385] wlan0: deauthenticated from c8:ee:a6:2d:cc:6c (Reason: 2=PREV_AUTH_NOT_VALID) [ 8998.629537] br-lan: port 2(wlan0) entered disabled state [ 9003.635631] wlan0: authenticate with c8:ee:a6:2d:cc:6c [ 9003.651230] wlan0: send auth to c8:ee:a6:2d:cc:6c (try 1/3) [ 9003.670365] wlan0: associate with c8:ee:a6:2d:cc:6c (try 1/3) [ 9003.681735] wlan0: RX AssocResp from c8:ee:a6:2d:cc:6c (capab=0x431 status=0 aid=1) [ 9003.815829] br-lan: port 2(wlan0) entered forwarding state I think some bug in auth cause data packet drop. On Sat, Jun 3, 2017 at 4:09 PM, 孙建希 <ycsunjane@xxxxxxxxx> wrote: > wds ap: > > config wifi-device 'radio0' > option type 'mac80211' > option hwmode '11g' > option path 'platform/ar933x_wmac' > option distance '3000' > option txpower '18' > option country '00' > option channel '1' > option htmode 'HT40' > > config wifi-iface > option device 'radio0' > option network 'lan' > option mode 'ap' > option encryption 'psk2' > option key '12345600' > option max_inactivity '20' > option wds '1' > option ssid 'LK-M2-Jianxi' > > wds station: > > config wifi-device 'radio0' > option type 'mac80211' > option channel '1' > option hwmode '11g' > option path 'platform/ar933x_wmac' > option htmode 'HT20' > option distance '3000' > option txpower '19' > option country '00' > > config wifi-iface > option device 'radio0' > option network 'lan' > option encryption 'psk2' > option key '12345600' > option max_inactivity '20' > option wds '1' > option mode 'sta' > option ssid 'LK-M2-Jianxi' > > When the station break off, ping can not reach ap. wifi still > connect. kernel have no error info. iwinfo signal still change. > > ap with the other station still alive. > > Use wpa_cli scan command, will awake station, and ping alive. > wifi command also work. > > /proc/interrupts ath9k still alive.