Hi,
as soon as I set my SSID to hidden Volumio is not connected to my Router anymore. Any Ideas?
Here my settings:
auto wlan0
allow-hotplug wlan0
iface wlan0 inet static
address 192.168.178.201
netmask 255.255.255.0
gateway 192.168.178.1
wpa-ssid “SSID”
wpa-psk “WLAN-KEY”
I suspect that your static IP address has changed to a dynamic one … check connections on your router with and without the device connected to find the actual IP address
When i change the SSID back to visible i got connection immediately. The static IP of volumio remains. Its just looses its connection because it can’t see my router anymore… kind of. 
If it would be a accessible, i should reach it via volumio.local, which is not the case.
And its v1.55 not Volumio 2.
Ah, ok. Static addresses work fine in Volumio 1.55. No idea about hidden ssid though, since I never tried it.