I first noticed the issue earlier when I was trying to play DOTA2 for the first time today (though after thinking about it, it has been going on for about a week...causing me to try a new AV program a few days ago). Anyway, today I noticed that I was getting random lag spikes into the 1000ms range. To test to see if it was just my PC, I used my wife's laptop and ran SpeedTest. Everything came back normal (20 down /10 up). I went back to my PC and tried to run SpeedTest and I can't even get it to finish a test. Every once in a while it will get past pinging the server and show a d/l speed of only 3Mbps. I've never had an issue before, and the only thing I've done recently is add 2 more sticks of RAM. Anyone have any ideas of where I should start trying to fix the problem? PC specs are in my signature. Using Linksys WMP600N wi-fi adapter. edit: I've tried the basic stuff like restarting the PC, updating the device drivers, etc.