I found the problem , I see on the log there are message : - ath0: STA 94:35:0a:xx:xx:xx IEEE 802.11: disconnected due to missing ACKs
it's make client disconnect and make wifi reboot*
wifi reboot after i got too many disconnect
and it happen only when i watch youtube , do speedtest , heavy internet usage , etc
is anyone has solution ?
Thanks
-------- Edit
I success disable disassoc_low_ack , and there are no disconnection again or missing ACK's message , but the router is still rebooting if doing heavy internet usage , watching youtube , speedtest , and poor wifi signal
This script to disable disassoc_low_ack , put this on startup