I too have experienced this since the 12.10 upgrade. I have a wirless switch on the front of my laptop that I switch to the off position for a few seconds and then back on again and it remakes the connection without having to log out.
I too have experienced this since the 12.10 upgrade. I have a wirless switch on the front of my laptop that I switch to the off position for a few seconds and then back on again and it remakes the connection without having to log out.