Here's the deal I have the 6 plus and so does my bro, both on family plan. I have grandfathered unlimited and he has 2gb cap on his. We just cycled into a new month but even before than speeds are acting like they're throttled. We are both AT&T and NEVEr experienced this slow of speed before. Like 3 down at best yuck, no matter where we are. We tried resetting network setting, and doesn't work. Wifi is fine though for both of us. Any suggestions?