I have a 'freebox' internet connection (France) and from time to time I have to restart the modem (the 'box'). It is a recommended procedure.
My problem is that while my old computer running Xubuntu 12.10 has no problems with that, the other computer, running Windows 7, cannot recover its wifi connection after the aforementioned procedure, especially after changing the WLAN channel: in most cases my network is absent from the list (no matter running the troubleshooter, switching off/on the wifi button etc).
I usually find a way to solve this but in a hectic manner, and without being able to sum it up into a clear solution, so I thought it might be a good idea to ask here, at least to get an explanation on why this might happen.