Connecting to Ubuntu-hotspot

[The Pi Of Life]

Hi All,

I am struggling to get my pi connected to the built-in hotspot in Ubuntu 14.04

The hotspot is an ad-hoc network, secured with wep-encryption. These settings cannot be changed (strangely enough they still use wep anno 2015)
I use wpa_supplicant on the pi to connect to my other networks without any problems (ap at home and android phone hotspot on-the-go) they both use wpa2-psk encryption.
An iwlist scan shows the ubuntu hotspot and I can also connect my windows 7 laptop to the Ubuntu machine.
iwconfig shows the correct ssid and ad-hoc mode enabled.

I am using the following config in wpa_supplicant:

Code: Select all

network={
ssid="Ubuntu-hotspot"
mode=1
frequency=2412
key_mgmt=NONE
wep_key0="**************" (the key shown in Ubuntu hotspot-screen)
}

on rpi-boot, the network configuration shows "done...", so no error in the config-file but I cannot connect to the network.

Am I missing something here?