Raspberry Pi WiFi Dropouts (rt8192cu)
Check which driver it is using:
readlink /sys/class/net/wlan0/device/driver
If it’s ../../../../../../../../../bus/usb/drivers/rtl8192cu then:
sudo nano /etc/modprobe.d/8192cu.conf
And set contents:
# Disable power saving
options 8192cu rtw_power_mgnt=0 rtw_enusbss=1 rtw_ips_mode=1