It corrects itself after a soft reset, but I don't think I should have to do this every 48 hours. My Bose Wave Soundtouch System IV flashes a white light in the back of the unit, and my Soundtouch 10 flashes white and amber lights.
I am also having the same issue. I have had to reboot my Soundtouch 300 several times in the last few days after downloading lastest software update. Mine disconnects from wi-fi in less than 24 hours. This is very annoying after it had not done this in the past. I hope Bose takes a quick lok at this issue.