Network configuration

The FitPC has 802.3 (LAN) and 802.11 (wifi). At the club, both fixed network and wifi are on the same subnet. If the FitPC connects to both, it becomes slow and unstable.

So the fix is to disable the wifi interface (wan0) in /etc/network/interfaces

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto eth0
iface wlan0 inet manual