It might be helpful if I give a bit of background - every so often this laptop drops its internet connection to just local only for anywhere between 30seconds - 3 or so minutes, whilst all other devices can still connect. It has done this ever since it was new (last month), I first thought it was a problem with the wireless driver and windows 8 as a few people seem to be having similar problems. However yesterday I discovered that my router was logging regular DoS attacks from this computer such as...
[DoS attack: STORM] attack packets in last 20 sec from ip [192.168.1.3], Wednesday, Jan 02,2013 12:12:36
After watching the log for a bit I have discovered that my loss of internet always happens when my router has logged a STORM attack (although not all STORM attacks = no internet). As such I am now trying to monitor outgoing connections on my computer, however when I try to look at active programs in traffic monitor, I can't seem to change the graph of outgoing and incoming traffic from the fist program on the list. Single clicking seems to do nothing whilst double clicking only expands the list.
If you've got a NetGear router then there are some other forums where you can find information about this. NetGear seems to show this message quite a lot. One of the contributing factors seems to be having UPnP enabled on the system - disabling it may help.
Have look at these threads -
http://forums.whatthetech.com/index.php?showtopic=114406 (from a Mac user, but still relevant)