I'm at my wits end with this same issue. I have talked to sprint, they have no idea what I'm talking about, it's like I'm speaking a different language. My phone without fail turns wifi off and then back on and reconnects about every minute or so, I guess I should really time it to see if it's exactly the same duration each time. To whoever said that is normal for battery consumption, you tell that to the Real Soccer game that I've been trying to download 500 megabytes for over a week now! It does seem like it's cyclical, it's not random in duration I think, it happens like clockwork and will not stop. It doesn't matter what wifi network I'm connected to. I have a completely stock phone, have ATK (which by the way for that stickied post, doesn't cause ANY app to malfunction that I am aware of) installed, not set to auto-kill, and I don't go killing off every little thing running in the background ((Still don't know why there are constantly 3 instances of maps running though, when I don't have anything set to auto locate nor am I using apps that would even require maps to be running, sorry off topic)). I cannot take this any more. I'm a pretty fart smeller when it comes to this stuff and can't makes heads or tails of it. I have tried different routers, different security types, no security, plugged in, not plugged in (charger)... HELP ME PLEASE!!!! And to top it all off, my fiance has the EVO as well, older model, subtle differences between the two OS's, and her's maintains connection, all the time... This phone is seriously about to take a trip to the wall at about as fast as I can throw it.