Well, there is a very simple solution:

1. Go to /etc/ifplugd/action.d/ and rename the ifupdown file to ifupdown.original
2. Then do: cp /etc/wpa_supplicant/ifupdown.sh ./ifupdown
3. Finally: sudo reboot

That's all. Test this by turning off/on your AP; you should see that your Raspberry Pi properly reconnects.

(Only for RPi 1 and RPi 2, not RPi 3+. "does not work on dhcpcd based distros")

Well, there is a very simple solution:

1. Go to /etc/ifplugd/action.d/ and rename the ifupdown file to ifupdown.original
2. Then do: cp /etc/wpa_supplicant/ifupdown.sh ./ifupdown
3. Finally: sudo reboot

That's all. Test this by turning off/on your AP; you should see that your Raspberry Pi properly reconnects.

Well, there is a very simple solution:

1. Go to /etc/ifplugd/action.d/ and rename 'ifupdown' file to 'ifupdown.original'
2. Than do: cp /etc/wpa_supplicant/ifupdown.sh ./ifupdown
3. Finally: sudo reboot

That's all, test by turning off/on your AP, you should see that your Raspberry Pi properly reconnects ;-)

Asalamu alaikoum bro.

Well, there is a very simple solution:

1. Go to /etc/ifplugd/action.d/ and rename the ifupdown file to ifupdown.original
2. Then do: cp /etc/wpa_supplicant/ifupdown.sh ./ifupdown
3. Finally: sudo reboot

That's all. Test this by turning off/on your AP; you should see that your Raspberry Pi properly reconnects.