Hello everyone,
I experienced a weird problem after the latest system upgrade. Every time I turn on my macbook, or open it from stop mode, it connects automatically to the net (not complaining here though); problem is that sometimes even if it tries to connect nothing happens and when I go to cut the connection the icon in the top bar changes and that's all, neither from the network preferences nor putting it into stop nor loging out I manage to cut the connection. I need to reboot the system. What can I do to fix this?
Thank you very much!


PS: I tried to be as clear as possible, feel free to correct any mistake I made in english.