I have a windows7/ubuntu12.10 install. Yesterday, everything was fine with both. Today, the internet only works on the windows side. Ubuntu connects okay to the wired network (so it says) but I cannot ping anything and MOST of the time (49/50) no web page will load. Though that 50th page WILL load, it loads very slowly.
Thinking something broke in the ubuntu install, I tried loading from the Ubuntu live DVD I originally installed from. Same issue. Then I tried Mint and Fedora, both from live CD's. Exactly the same situation. All of those live CDs used to connect to the internet with no issue.
Now I'm thinking hardware issue, but again, windows is working fine.