During Installation, network can be configured.
When doing this for a wireless network, it can be scanned for networks, and
selected from the list.
So far so good.
But after a network was selected, the encryption method is not set  to the one
of the selected network.
When you just enter your passphrase, the network settings are saved and
activated, but no feedback is given that the network is not connected. 
That took me some rounds to find out why the WIFI does not connect. After
encryption was set manually to WPA2, everything worked fine