I am using a Sony Vaio laptop that originally came with a Windows 8 operating system. I removed it entirely and replaced it with Ubuntu 12.10. It seems to me that the WiFi is temperamental. I can restart my laptop multiple times and have the laptop attempt to connect to the wireless Internet to no avail. Other times, I start the laptop and the wireless connects seamlessly. I have checked to make sure the WiFi password is correct, so I don't think that is the issue.