Who Me Too'd this topic

HI everyone， I have a problem is that client which is under AP2802E cannot get a ip address ，after we reload the ap,the issue can be resloved temporarily . There are some abnormal logg when the issue occur. "ay 25 01:44:39 kernel: [*05/25/2018 01:44:39.9093] !!!!! {watchdogd} WARNING: System memory is running low (Free memory:100)!! May 25 01:44:39 kernel: [*05/25/2018 01:44:39.9093] May 25 01:55:29 apsw_watchdog: WARNING: System memory is running low (Free memory:100)!! May 25 01:55:29 kernel: [*05/25/2018 01:55:29.6910] May 25 01:55:29 kernel: [*05/25/2018 01:55:29.6910] !!!!! {watchdogd} WARNING: System memory is running low (Free memory:100)!! May 25 01:55:29 kernel: [*05/25/2018 01:55:29.6910] May 25 02:06:20 apsw_watchdog: WARNING: System memory is running low (Free memory:99)!! May 25 02:06:20 kernel: [*05/25/2018 02:06:20.0242] May 25 02:06:20 kernel: [*05/25/2018 02:06:20.0242] !!!!! {watchdogd} WARNING: System memory is running low (Free memory:99)!!" attached is debug info and other "show" info of WLC and AP,please help me to resloved this issue,"debug（client normal）" file is collected when client can get a ip address. thanks~