Thanks for your advice. I tried this. But it did not help.
If I switch WiFi on, I can see my Wlan, but it has often just one bar instead of 3, even when I`m sitting in front of my router. If I click on the wlan, this ip stuff appears on the screen but everything stays empty and he doesn't ask for password.
Do I click on safari he asks me to select a wlan. when I click on my wlan, he also asks for the password and then happens nothing. I don't even notice that he's trying to connect.
So is my hardware broken ? And if it is - caused the new firmware this (maybe the touch getting too hot or something) ?
I mean it was a process of daily getting worse leading up to nothing happens anymore. First...after the installation, wifi was okay !
Does anybody has experience with a downgrade to 2.2.1. ? I'm not up for it anymore....maybe I have my ipod to send in to Apple ????