客户端 无法连接wifi，详细看日志

客户端 无法连接wifi，日志 Can't send add mobile message to uplink device: Reached the end of the IOCTL tunnel. 

这个是什么意思？如何解决 

*Nov 20 13:33:41:635 2018 AC-1 STAMGR/7/FSM: [APID: 64] [MAC: 0019-70b7-64ca, BSSID: 90e7-109b-c172] Received authentication request in the Unauth state. *Nov 20 13:33:41:636 2018 AC-1 STAMGR/7/Event: [APID: 64] [MAC: 0019-70b7-64ca, BSSID: 90e7-109b-c172] Processed authentication request successfully, and sent authentication response. *Nov 20 13:33:41:636 2018 AC-1 STAMGR/7/Timer: [APID: 64] [MAC: 0019-70b7-64ca, BSSID: 90e7-109b-c172] Created state timer. *Nov 20 13:33:41:636 2018 AC-1 STAMGR/7/FSM: [APID: 64] [MAC: 0019-70b7-64ca, BSSID: 90e7-109b-c172] Changed the client's state from Unauth to Auth. *Nov 20 13:33:41:639 2018 AC-1 STAMGR/7/FSM: [APID: 64] [MAC: 0019-70b7-64ca, BSSID: 90e7-109b-c172] Received association request in the Auth state. *Nov 20 13:33:41:639 2018 AC-1 STAMGR/7/FSM: [APID: 64] [MAC: 0019-70b7-64ca, BSSID: 90e7-109b-c172] Client state: Auth.*Nov 20 13:33:41:640 2018 AC-1 STAMGR/7/Event: [APID: 64] [MAC: 0019-70b7-64ca, BSSID: 90e7-109b-c172] Checking (re)association load of the device. *Nov 20 13:33:41:640 2018 AC-1 STAMGR/7/Event: [APID: 64] [MAC: 0019-70b7-64ca, BSSID: 90e7-109b-c172] Processing fields and IE in the (re)association request. *Nov 20 13:33:41:640 2018 AC-1 STAMGR/7/Event: [APID: 64] [MAC: 0019-70b7-64ca, BSSID: 90e7-109b-c172] Processed (re)association request successfully when the client was in Auth state. *Nov 20 13:33:41:640 2018 AC-1 STAMGR/7/Event: [APID: 64] [MAC: 0019-70b7-64ca, BSSID: 90e7-109b-c172] Processed (re)association request successfully, and sent (re)association response. *Nov 20 13:33:41:641 2018 AC-1 STAMGR/7/Event: [APID: 64] [MAC: 0019-70b7-64ca, BSSID: 90e7-109b-c172] Sent add mobile message to downlink device successfully. *Nov 20 13:33:41:642 2018 AC-1 STAMGR/7/Event: [APID: 64] [MAC: 0019-70b7-64ca, BSSID: 90e7-109b-c172] Can't send add mobile message to uplink device: Reached the end of the IOCTL tunnel.