i have a peculiar problem here. whenever i'm playing starcraft on bnet i join a game then it becomes horribly laggy. this doesn't happen when i play with one other person, but if its 3 or more it lags. i'm on a 1.2 megabit dsl connection. IS IT POSSIBLE that my connection is TOO fast? i've tried using netlimiter to cap the network speed for starcraft, and disabling all antivirus software, but those methods didn't seem to help at all.

people can't join the games i create either

why not? what does it say. if they cant join your games, check firewalls on routers/ computers. the lag could be that your friends have 56k, or all the people tyou play with have 56k, that makes it lag.

I have seen this problem many, many times before, and it seems to only affect people using DSL. I highly doubt that your connection is "too fast"; I have a very low-latency connection at college and I can play with multiple people just fine. I think that FBI Agent's theory about all the people you're playing with having high-latency 56k connections causing a problem is plausible (I'm sure that many Starcraft players are on 56k), but it seems that the problem always occurs with three or more people regardless of what their connection latencies are.

Personally, I believe that this issue is with the game itself; when it was developed, not as many people were using DSL connections.

About your other problem... if you're behind a NAT router (including one that might be built into your DSL modem), you should try forwarding port 6112, TCP and UDP to your computer. That might solve the lag problem as well, but I really don't know.

If you're behind a separate hardware router or a PC running Internet-connection sharing software, try bypassing it and see if the lag goes away.

Do you have any friends who use the same ISP and are having the same problem with Starcraft?

How far are you from the nearest switching station? If you are towards the edge, your connection latency might be pretty high.

I have the exact same problem.

Last year in college I could hardly ever play Brood War because I'd get the message "Your internet connection is either very poor or your computer is not processing UDP packets on port 6112, please contact your ISP for more information."

Obviously I couldn't do much about the problem then, but then I moved and everything worked fine until last week, when my building's router (my whole apartment building shares one router apparently) got hit by a power surge and died, and got replaced.

Now I'm getting the same problems with battle.net and it sucks :-(

Alright, I can give a little advice(sorry busy), well it's not the 56kers, if you don't know yet, Battle.net is a client-server, 56kers don't have anything to do with it. Also your SC problem is probably virus-related, i'd advice scanning your system32 folder, it's commonly attacked with problems that're really annoying, they can crash you, lag you VERY BADLY, and restart your computer with RPC, try that.

I play Ragnarok Online,