Wireless network stopped working after upgrade!

Hello!

After some struggle to get my wireless network connection with Mandriva 2010 to work I upgraded to Mandriva 2011.0. But now my wireless network connection stopped work again.

It looks like the computer finds the adapter but do not seems able to start it.

[root@linux_2 fredrik]# lsusb
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 046d:c018 Logitech, Inc. Optical Wheel Mouse
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 003: ID 07d1:3c0f D-Link System AirPlus G DWL-G122 Wireless Adapter(rev.E) [Ralink RT2870]
[root@linux_2 fredrik]# iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 Ralink STA ESSID:"" Nickname:""
Mode:Auto Frequency=2.412 GHz
Link Quality=10/100 Signal level:0 dBm Noise level:-143 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

When I try to start it from the network center I just get:
Problems occured during the network connectivity test.
This can be caused by invalid network configuration, or problems with your modem or router.
You might want to relaunch the configuration to verify the connection settings.

I have not tried any windows driver since I did not use that with mandriva 2010 what I do remember.

Do you guys got any ideas?

Best regards
Fredrik