I'm observing really annoying issues with connectivity to RasPi on WiFi network. I have device connected on both LAN cable and WiFi. If both cable and WiFi dongle are plugged - both interfaces are working fine and I'm able to connect to RasPi through IP addresses of both interfaces.
However, when I unplug the LAN cable - after restart - RasPi becomes unavailable by SSH. If I unplug - till restart - device is still fully available via WiFi interface through SSH! After restart - it cannot be accessed any more.
Here are my settings: /etc/network/interfaces
iface lo inet loopback
iface eth0 inet dhcp
iface wlan0 inet dhcp
Please, help to identify the reason of the issue.