Note to self: “StarCraft requires TCP and UDP port 6112 forwarded to properly join and host games on Battle.net.” Yes, not just for hosting. The weird bit is that you can easily get in a situation where your connection is misconfigured, but you don’t get any error message whatsoever; just extreme lag whenever a game starts.
Update: Turns out this tip is not even wrong; it’s just more complicated than that. I finally got StarCraft working through my router, but I’ll have to break out the sniffer and analyse what exactly is going on before I can post details. I hope I’ll get around to that next week.
