I recently updated to Ubuntu 12.04, from Ubuntu 10.04, and my Internet, USB760 Novetel Verizon-Wireless Mobile Broadband, will connect after a minute of me starting the computer up. But after a while it will disconnect and the only way to reconnect it is to restart the computer. Even then, sometimes it won't work.

I've also noticed that since I've upgraded the computer, the computer will randomly enter into Power Save mode, and then it will tell me to log back in. I've done nothing to provoke it, other than using the Internet. I was wondering, could the entering into Power Save mode and the Internet disconnecting be somehow connected? I've updated the computer every time it asks me to do so, but it doesn't seem to be helping. If Ubuntu 10.04 would still be supported by next year, I would downgrade. But I have no other choice than to stick with 12.04. Any help would be greatly appreciated! Thanks!