I just got my iPhone 6 and I'm noticing that my Wi-Fi connection is not changing when I'm moving. Meaning... I live near my Aunt and I have both Wi-Fi settings/passwords saved. In previous iPhone's, it would automatically move me from my Wi-Fi to hers when I was there and vice versa. I'm now having to manually go back into the Wi-Fi setting and click on the correct network I'm near. Help?