Whenever I play D3 I lost the internet connection on my computer. My roommates both play Dota 2 and CS:GO but they never lose connection. I even tried getting on while they are not on. My ping is usually around 90-135 while on D3 and I still lose connection. We called Comcast, everything's good on their end. My internet speed is 10 mbps download and around 3 mbps upload. We changed the router, not the modem (we bought our own instead of using Comcast's modem), and I still have the issues of losing connection. None of them have D3 to try out and see if it runs okay on their PCs. Maybe I should have them download the game and I could try playing on theirs. Also, when I play at other people's homes who have 10mbps, I never lose connection or anything. I don't want to have to rent Comcast's modem because it is too pricey here. If anyone has any ideas, it would be much appreciated. Thank you.