wifi won't turn on after a few hours
I am using OS X 10.7.5 on my MacBook Air 13". I have noticed for quite some time now that the Wireless function stops working after a few hours of operation. Then I usually turn the WiFi off then back on again to make it work. However, sometimes the "turn wifi on" does not work after it went off. So, I have to restart the system. This becomes annoying that I almost have to do a restart the machine every day.
Does anyone have a fix to this ?
Thanks.
John
Macbook Air, No backlight