отключается Wi-Fi у точек доступа Keenetic

Добрый день.
На предприятие имеем основной роутер mikrotik rb2011, есть три keenetic 4g в режиме точки доступа (подключены посредством витой пары, стоят в разных отделах). Обычно раз в час, а то и чаще бывает пропадает инет по wi-fi, подключение отображается но нет доступа в инет, если от точки доступа отключиться то потом при подключение повиснет на шаге авторизации или вовсе пошлет на*. Кстати по витухе в момент отключения все работает, инет есть, можно зайти на веб морду точки доступа.

в логах наковырял вот такое
Aug 28 16:40:40ndhcpcBridge0: signal 15 caught
Aug 28 16:40:40ndhcpcBridge0: DHCP client state is RELEASING
Aug 28 16:40:40ndhcpcBridge0: DHCP client state is RELEASING
Aug 28 16:40:40ndhcpcBridge0: sending RELEASE for 192.168.1.93 to 192.168.1.1.
Aug 28 16:40:40ndhcpcBridge0: starting client script with reason "leasefail"
Aug 28 16:40:40ndhcpcBridge0: script /var/run/ndhcpc-br0 run with action "leasefail", environment variables: "interface=br0 "
Aug 28 16:40:41ndmDhcp::Client: DHCP server is not responding.
Aug 28 16:40:41ndmNetwork::Interface::IP: "Bridge0": IP address cleared.
Aug 28 16:40:41ndhcpcBridge0: client script returned no error
Aug 28 16:40:41ndhcpcBridge0: NDM DHCP client stopped (exit status 0).
Aug 28 16:40:43ndhcpcBridge0: NDM DHCP client (version 3.0.9) started.
Aug 28 16:40:43ndhcpcBridge0: received OFFER for 192.168.1.93 from 192.168.1.1.
Aug 28 16:40:43ndhcpcBridge0: received ACK for 192.168.1.93 from 192.168.1.1.
Aug 28 16:40:43ndmDhcp::Client: configuring interface Home.
Aug 28 16:40:43ndmNetwork::Interface::IP: "Bridge0": IP address is 192.168.1.93/22.
Aug 28 16:40:43ndmDhcp::Client: obtained IP address 192.168.1.93/22.
Aug 28 16:40:43ndmDhcp::Client: interface "Home" is global, priority 1.
Aug 28 16:40:43ndmDhcp::Client: adding a default route via 192.168.1.1.
Aug 28 16:40:43ndmDhcp::Client: adding name server 192.168.1.1.
Aug 28 16:40:43ndmDns::Manager: name server 192.168.1.1 added, domain (default).
Aug 28 16:42:34wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had disassociated.
Aug 28 16:42:38wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had associated successfully.
Aug 28 16:42:39wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had disassociated.
Aug 28 16:42:47wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had associated successfully.
Aug 28 16:42:48wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) occurred MIC different in Key Handshaking.
Aug 28 16:42:51wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had disassociated.
Aug 28 16:42:51wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had associated successfully.
Aug 28 16:42:57wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) Pairwise Key Handshaking timeout.
Aug 28 16:42:57wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had deauthenticated.
Aug 28 16:42:58wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had associated successfully.
Aug 28 16:43:00wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) occurred MIC different in Key Handshaking.
Aug 28 16:43:02wmondSyslog: last message repeated 2 times.
Aug 28 16:43:04wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) Pairwise Key Handshaking timeout.
Aug 28 16:43:04wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had deauthenticated.
Aug 28 16:43:04wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had associated successfully.
Aug 28 16:43:05wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) occurred MIC different in Key Handshaking.
Aug 28 16:43:06wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had disassociated.
Aug 28 16:43:06wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had associated successfully.
Aug 28 16:43:09wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) occurred replay counter different in Key Handshaking.
Aug 28 16:43:12wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) Pairwise Key Handshaking timeout.
Aug 28 16:43:12wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had deauthenticated.
Aug 28 16:47:24wmondWifiMaster0/AccessPoint0: (RT2860) STA(78:88:6d:75:****) had been aged-out and disassociated.
Aug 28 16:49:42wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) had associated successfully.
Aug 28 16:49:42wmondWifiMaster0/AccessPoint0: (RT2860) STA(e4:a7:c5:6b:****) set key done in WPA2/WPA2PSK.
Aug 28 16:51:56wmondWifiMaster0/AccessPoint0: (RT2860) STA(78:88:6d:75:****) had associated successfully.
Aug 28 16:51:56wmondWifiMaster0/AccessPoint0: (RT2860) STA(78:88:6d:75:****) set key done in WPA2/WPA2PSK.