MQTT发送/接收过程中，现I (1637618) wifi: bcn_timout,ap_probe_send_start错误，wifi连接失败的原因？

MQTT发送/接收过程中，出现I (1637618) wifi: bcn_timout,ap_probe_send_start错误，之后wifi重新连接一直失败！

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I (1631728) BED_MQTT: {"data":"01010F0011"}
I (1632138) BED_MQTT: mqtt_event (6)
I (1632138) BED_MQTT: {"data":"010108000A"}
I (1635268) BED_MQTT: tape data: 21 01 03 16 3B
I (1635268) BED_MQTT: esp mqtt client public msg_id=0
I (1635308) BED_MQTT: mqtt_event (6)
I (1635308) BED_MQTT: {"data":"010109000B"}
I (1635318) BED_MQTT: mqtt_event (6)
I (1635318) BED_MQTT: {"data":"01010A000C"}
I (1635428) BED_MQTT: mqtt_event (6)
I (1635428) BED_MQTT: {"data":"01010B000D"}
I (1635428) BED_MQTT: mqtt_event (6)
I (1635428) BED_MQTT: {"data":"01010C000E"}
I (1635438) BED_MQTT: mqtt_event (6)
I (1635438) BED_MQTT: {"data":"01010D000F"}
I (1635448) BED_MQTT: mqtt_event (6)
I (1635448) BED_MQTT: {"data":"01010E0010"}
I (1636718) BED_MQTT: tape data: 21 03 00 6E 92
I (1637618) wifi: bcn_timout,ap_probe_send_start
I (1637668) BED_MQTT: mqtt_event (6)
I (1637668) BED_MQTT: {"data":"01010F0011"}
I (1637668) BED_MQTT: mqtt_event (6)
I (1637668) BED_MQTT: {"data":"010108000A"}
I (1637788) BED_MQTT: mqtt_event (6)
I (1637788) BED_MQTT: {"data":"010109000B"}
I (1637798) BED_MQTT: mqtt_event (6)
I (1637798) BED_MQTT: {"data":"01010A000C"}
I (1637798) BED_MQTT: mqtt_event (6)
I (1637798) BED_MQTT: {"data":"01010B000D"}
I (1637998) BED_MQTT: mqtt_event (6)
I (1637998) BED_MQTT: {"data":"01010C000E"}
I (1638688) BED_MQTT: mqtt_event (6)
I (1638688) BED_MQTT: {"data":"01010D000F"}
I (1638818) BED_MQTT: mqtt_event (6)
I (1638818) BED_MQTT: {"data":"01010E0010"}
I (1639628) BED_MQTT: mqtt_event (6)
I (1639638) BED_MQTT: {"data":"01010F0011"}
I (1639848) BED_MQTT: mqtt_event (6)
I (1639848) BED_MQTT: {"data":"010108000A"}
I (1640118) wifi: ap_probe_send over, resett wifi status to disassoc
I (1640118) wifi: state: run -> init (c800)
I (1640118) wifi: pm stop, total sleep time: 920060983 us / 1473310175 us

I (1640128) wifi: new:<1,0>, old:<1,1>, ap:<255,255>, sta:<1,1>, prof:1
I (1640138) WIFI_STATION: wifi_event_handler:[5]
E (1640138) MQTT_CLIENT: mqtt_message_receive: transport_read() error: errno=113
W (1640138) WIFI_STATION: retry to connect to the AP 1
E (1640148) MQTT_CLIENT: mqtt_process_receive: mqtt_message_receive() returned -1
I (1640158) BED_MQTT: mqtt_event (2)
I (1640308) BED_MQTT: tape data: 21 01 02 F8 1C
I (1641758) BED_MQTT: tape data: 21 03 00 6E 92
I (1642198) WIFI_STATION: wifi_event_handler:[5]
W (1642198) WIFI_STATION: retry to connect to the AP 2
I (1644248) WIFI_STATION: wifi_event_handler:[5]
W (1644248) WIFI_STATION: retry to connect to the AP 3
I (1645238) BED_MQTT: tape data: 21 01 03 0C 31
I (1646308) WIFI_STATION: wifi_event_handler:[5]
W (1646308) WIFI_STATION: retry to connect to the AP 4
I (1646668) BED_MQTT: tape data: 21 03 00 6E 92
I (1648358) WIFI_STATION: wifi_event_handler:[5]
W (1648368) WIFI_STATION: retry to connect to the AP 5
I (1650168) BED_MQTT: mqtt_event (7)
I (1650268) BED_MQTT: tape data: 21 01 03 02 27
I (1650418) WIFI_STATION: wifi_event_handler:[5]
W (1650418) WIFI_STATION: retry to connect to the AP 6
I (1651718) BED_MQTT: tape data: 21 03 00 6E 92
I (1652478) WIFI_STATION: wifi_event_handler:[5]
W (1652478) WIFI_STATION: retry to connect to the AP 7
I (1654528) WIFI_STATION: wifi_event_handler:[5]
W (1654528) WIFI_STATION: retry to connect to the AP 8
I (1655198) BED_MQTT: tape data: 21 01 03 02 27
I (1656588) WIFI_STATION: wifi_event_handler:[5]
W (1656588) WIFI_STATION: retry to connect to the AP 9
I (1656638) BED_MQTT: tape data: 21 03 00 6E 92
I (1658648) WIFI_STATION: wifi_event_handler:[5]
W (1658648) WIFI_STATION: retry to connect to the AP 10
I (1660238) BED_MQTT: tape data: 21 01 03 0C 31
I (1660698) WIFI_STATION: wifi_event_handler:[5]
W (1660698) WIFI_STATION: retry to connect to the AP 11
I (1661668) BED_MQTT: tape data: 21 03 00 6E 92
I (1662758) WIFI_STATION: wifi_event_handler:[5]
W (1662758) WIFI_STATION: retry to connect to the AP 12
E (1663308) MQTT_CLIENT: Error transport connect
I (1663308) BED_MQTT: mqtt_event (0)
I (1663308) BED_MQTT: mqtt_event (2)
I (1664808) WIFI_STATION: wifi_event_handler:[5]
W (1664818) WIFI_STATION: retry to connect to the AP 13
I (1665268) BED_MQTT: tape data: 21 01 03 2A 4F
I (1666718) BED_MQTT: tape data: 21 03 00 6E 92
I (1666868) WIFI_STATION: wifi_event_handler:[5]
W (1666868) WIFI_STATION: retry to connect to the AP 14
I (1668928) WIFI_STATION: wifi_event_handler:[5]
W (1668928) WIFI_STATION: retry to connect to the AP 15
I (1670198) BED_MQTT: tape data: 21 01 03 2A 4F
I (1670978) WIFI_STATION: wifi_event_handler:[5]
W (1670988) WIFI_STATION: retry to connect to the AP 16
I (1671638) BED_MQTT: tape data: 21 03 00 6E 92
I (1673038) WIFI_STATION: wifi_event_handler:[5]
W (1673038) WIFI_STATION: retry to connect to the AP 17
I (1675098) WIFI_STATION: wifi_event_handler:[5]
W (1675098) WIFI_STATION: retry to connect to the AP 18
I (1675238) BED_MQTT: tape data: 21 01 03 0C 31
I (1676668) BED_MQTT: tape data: 21 03 00 6E 92
I (1677148) WIFI_STATION: wifi_event_handler:[5]
W (1677148) WIFI_STATION: retry to connect to the AP 19
I (1678308) BED_MQTT: mqtt_event (7)
I (1679208) WIFI_STATION: wifi_event_handler:[5]
W (1679208) WIFI_STATION: retry to connect to the AP 20
I (1680158) BED_MQTT: tape data: 21 01 03 02 27
I (1681268) WIFI_STATION: wifi_event_handler:[5]
W (1681268) WIFI_STATION: retry to connect to the AP 21
I (1681598) BED_MQTT: tape data: 21 03 00 6E 92
I (1683318) WIFI_STATION: wifi_event_handler:[5]
W (1683318) WIFI_STATION: retry to connect to the AP 22
I (1685198) BED_MQTT: tape data: 21 01 03 02 27
I (1685378) WIFI_STATION: wifi_event_handler:[5]
W (1685378) WIFI_STATION: retry to connect to the AP 23
I (1686638) BED_MQTT: tape data: 21 03 00 6E 92
I (1687428) WIFI_STATION: wifi_event_handler:[5]
W (1687438) WIFI_STATION: retry to connect to the AP 24
I (1689488) WIFI_STATION: wifi_event_handler:[5]
W (1689488) WIFI_STATION: retry to connect to the AP 25
I (1690238) BED_MQTT: tape data: 21 01 03 2A 4F
I (1691548) WIFI_STATION: wifi_event_handler:[5]
W (1691548) WIFI_STATION: retry to connect to the AP 26
I (1691668) BED_MQTT: tape data: 21 03 00 6E 92
E (1692308) MQTT_CLIENT: Error transport connect
I (1692308) BED_MQTT: mqtt_event (0)
I (1692308) BED_MQTT: mqtt_event (2)
I (1693598) WIFI_STATION: wifi_event_handler:[5]
W (1693598) WIFI_STATION: retry to connect to the AP 27
I (1695158) BED_MQTT: tape data: 21 01 03 16 3B
I (1695658) WIFI_STATION: wifi_event_handler:[5]
W (1695658) WIFI_STATION: retry to connect to the AP 28
I (1696598) BED_MQTT: tape data: 21 03 00 64 88
I (1697718) WIFI_STATION: wifi_event_handler:[5]
W (1697718) WIFI_STATION: retry to connect to the AP 29
I (1699768) WIFI_STATION: wifi_event_handler:[5]
W (1699768) WIFI_STATION: retry to connect to the AP 30
I (1700198) BED_MQTT: tape data: 21 01 03 0C 31
I (1701638) BED_MQTT: tape data: 21 03 00 64 88
I (1701828) WIFI_STATION: wifi_event_handler:[5]
W (1701828) WIFI_STATION: retry to connect to the AP 31
I (1703878) WIFI_STATION: wifi_event_handler:[5]
W (1703888) WIFI_STATION: retry to connect to the AP 32
I (1705118) BED_MQTT: tape data: 21 01 03 20 45
I (1705938) WIFI_STATION: wifi_event_handler:[5]
W (1705938) WIFI_STATION: retry to connect to the AP 33
I (1706558) BED_MQTT: tape data: 21 03 00 5A 7E
I (1707308) BED_MQTT: mqtt_event (7)
I (1707998) WIFI_STATION: wifi_event_handler:[5]
W (1707998) WIFI_STATION: retry to connect to the AP 34