i have 2 SXT ac ptp mode 4KM distance, i was testing to change my old ptp and now even not using this ptp if i just enable wlan of my SXT AC the CPU load . remember im not using this ptp and if i just enable wlan the CPU load goes 100%. look this;
WLAN disable - = ok CPU load 0%
[admin@MikroTik] > system resource print
uptime: 20m36s
version: 6.24
build-time: Dec/23/2014 13:38:45
free-memory: 88.3MiB
total-memory: 128.0MiB
cpu: MIPS 74Kc V5.0
cpu-count: 1
cpu-frequency: 720MHz
cpu-load: 0%
free-hdd-space: 110.1MiB
total-hdd-space: 128.0MiB
write-sect-since-reboot: 331
write-sect-total: 20260
bad-blocks: 0%
architecture-name: mipsbe
board-name: RB SXT G-5HPacD
platform: MikroTik
\
Now with wlan ENABle but not using this interface.
[admin@MikroTik] > system resource print
uptime: 22m7s
version: 6.24
build-time: Dec/23/2014 13:38:45
free-memory: 87.7MiB
total-memory: 128.0MiB
cpu: MIPS 74Kc V5.0
cpu-count: 1
cpu-frequency: 720MHz
cpu-load: 32%
free-hdd-space: 110.1MiB
total-hdd-space: 128.0MiB
write-sect-since-reboot: 335
write-sect-total: 20264
bad-blocks: 0%
architecture-name: mipsbe
board-name: RB SXT G-5HPacD
platform: MikroTik
Maybe this could help someone solve this.
Look logs, with Wlan enable sometimes SXT reboot or crashs and this is log msg.
admin@MikroTik] > log print
00:20:23 system,error,critical System rebooted because of kernel failure
00:20:24 system,error,critical Out of memory condition was detected
00:20:24 system,error,critical router was rebooted without proper shutdown
00:20:28 interface,info ether1-local link up (speed 100M, full duplex)
00:30:37 system,info,account user admin logged in from 10.10.10.1 via telnet