Yeah, I'm stuck disconnecting with error 3007 every few minutes as well. Belkin playmax modem, streamyx 2mb connection. Tried port forwarding which doesn't really help.

If your router works for everything else, you shouldn't really have to change your router just to play diablo3.

What's depressing is that there are hundreds, if not thousands of people experiencing the same problem on the official diablo forums with no real cause/solution identified there and the deafening silence of the blues.

I am angry as well. While I have no doubt that once the game gets going it can be fun, I'm stuck now twiddling my thumbs in frustration until blizzard comes up with a satisfactory solution.

You pretty much have to be one of the unlucky ones to get this error. At least one other mod is experiencing error 3007 disconnects.

For some reason, joining general chat seems to solve error 3007 for me. Trouble is, general chat is really rubbish and it's kinda like barrens chat 24/7 but at least I've finally managed to get more than 5 minutes of gameplay. I sincerely hope blizzard finds a fix for this soon.