I seem to be having an issue with wifi speeds on my iPhone 6s+ and I can't explain it. I was wondering if anyone has had the same problem or if you know why it would happen. Its absolutely maddening. Anyway, I have an iPhone 6s+ and my wife has my old hand-me-down iPhone 5. Sitting in the living room (where my router is) I get blazing wifi speeds compared to her older model iPhone (obviously). But when we're in the bedroom I end up getting 1-3mbit/ sec DL and she gets 28-30mbit/sec DL. It drives me absolutely insane. The router is literally 1 room away. I use an AirPort Extreme Gen 5 with an AirPort Express extending it. Im normally on the 5 Ghz band but in the bedroom 2.4 Ghz takes over (range reasons I suppose). Regardless of router set up, range, or interference, the fact remains: Side by side, on the same network, on the same frequency, My wife's iPhone 5 beats my iPhone 6s+ every single time. (We're talking up to 10x faster speeds here). I can't for the life of figure out why. Should I bring my phone in for a checkup? or is there a reasonable explanation? My nearest Apple Store is over an hour away. Any advice is appreciated. Edit: I have searched Google extensively as well as searched the forum here. If I missed a previous thread on this topic I apologize.