Suse 11.1: knetworkmanager does not recover connections afte

I am using Suse 11.1 on an Asus Eee 1000HA and have the following problem: knetworkmanager does not recover connections after suspend.
-> The Interfaces are up (I checked that with ifconfig as root)
-> knetworkmanager is up and can connect to other networks (e.g. wired)
-> knetworkmanager deos not see, however, any wireless network.
-> If I trie to connect explicitely to my wireless network, it fails.