I am not entirely sure it will help with pine64, like i said before mine wifi in Access point mode works stable with Ubunutu, but in Raspberry pi disabling power management helps to keep wifi up:
sudo vim /etc/modprobe.d/8192cu.conf
and add the following line :
options 8192cu rtw_power_mgnt=0 rtw_enusbss=0
original here : http://www.raspberrypi-spy.co.uk/2015/06...pberry-pi/
sudo vim /etc/modprobe.d/8192cu.conf
and add the following line :
options 8192cu rtw_power_mgnt=0 rtw_enusbss=0
original here : http://www.raspberrypi-spy.co.uk/2015/06...pberry-pi/