I installed Volumio last night and also had problems with wifi. Solved it using instructions in the following link: raspyfi.com/wi-fi-on-raspber … ple-guide/
There are several ideas on how to go about it. I choose to follow these instructions:
ssh in and do:
sudo nano /etc/network/interfaces
Change it to this:
iface lo inet loopback
#Remove the wired network because it
#slows down boot if it’s not connected.
#iface eth0 inet dhcp
iface wlan0 inet static
address 192.168.1.20 #(IP address you want to assign to your Volumio)
gateway 192.168.1.2 #(IP of router in your network)
Worked perfect for me. The obvious problem with this solution is that the unit will be tied to your home setup and the file needs to be manually changed if you move your unit to a different network.
Regarding date/time: run “raspi-config” at the command prompt and set the correct time zone