Hey, encountered a strange problem. While streaming from my Macbook's iTunes via my Apple TV (3rd gen), my iPhone SE started synching with my Macbook (late 2011) and suddenly everything stopped: synching, streaming AND my wi-fi connection. My iPhone and my Macbook cannot see my wi-fi network any more. Ethernet connection to Apple TV and Macbook is OK so the router seems to be OK. Anybody have an idea how to make the Macbook and iPhone see my wi-fi so that I can connect to it again? Thank you for any help.