How do I make my wireless internet connection more stable?

I use Time Warner Roadrunner wireless internet with a Netgear router. The internet is extremely fast, but whenever I try to play an internet game called Starcraft, I can join/create games, but I usually drop out because my wireless connection isn’t “stable.” I’ve played Starcraft on my dial-up connection before, and it is extremely stable. How do I make my wireless internet more stable?

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