I am using windows XP pro with cable modem. It has been working very well for four month. But suddently today, my connection is dead. It seems the problem is that the DHCP server couldn't get an IP from my ISP. The problem should be on my computer. When I unplug the cable from my computer, and restart it. The connection icon still shows up in the right-bottom corner as connected. (before, it showed "disconnected icon") and in the event viewer, it has a warning message: event number 1007. Please let me know how I can fix the problem.