installer does not find a network - but a live system does ... wtf?

[user1]

On Thu, 10 Mar 2011 00:35:52 +0100, Andi Meier wrote:

> a newly installed Ubuntu 10.04 is working - well, almost. there is no
> network, 

I am using 10.10.

I have been using both network-manager and wicd when I had problems.

It seems to me, that now network-manager is working well.

I have installed:

network-manager, network-manager-gnome, network-manager-pptp all 
installed by itself during new installation.

I have just been on a trip abroad, and everywhere my laptop connected 
well with various wireless routers.