For almost a year, I've been using my Mac with Windows XP with Boot Camp connected to an Ethernet/wireless D-Link router. However, last week suddenly I cannot connect to the Internet anymore from Mac OS X; ping to anything will not work. If I boot into XP, it works without problems (I'm writing this from XP right now).
So it seems pretty weird that I can't connect anymore from Mac OS. Is there some sort of tests I can do to diagnose the problem?