My pc is connected through wifi, whenever I rebooted my machine, it's not automatically connected to wifi, I had to run the following to be able to connect.

root@htpc-devuan:~# /etc/init.d/networking restart

my network setting is as follows:
erdos@htpc-devuan:~/Documents$ pico /etc/network/interfaces

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp

# my wifi device
allow-hotplug wlan0
iface wlan0 inet dhcp
        wpa-ssid ssidname
        wpa-psk password

any advice?