I downloaded Ubuntu OS 12.10 a few days ago and everything was working fine, aside from a lot of bugs and a lot of glitches and freezing. Today when I turned on my computer my Keyboard (which is connected via USB) would not work, and it said there were no recognizable networks. I then tried to connect to the internet via Ethernet cable, but it still would not work. My keyboard was working fine up until this morning, and I've had no issues connecting wirelessly until now. What is going on?