Internet connection lost

After doing some so called recomended updates yesterday my internet connection is lost.
My network card still is working because using it in windows it works

Is there a posibility to undo these updates or find what the problem is witout having a internet connection?

You might give us a bit more input:
Is your network card a wired or non-wired?
Is the network card recognized?
Are the drivers modules loaded?
What says

tail -f /var/log/messages

when you try to connect?
What does



Zwenny, after a new start up just now it works out of the box again.
Thanks for your time.