My firend's iPhone 7plus is doing something strange and I can't figure it out. We track our kiddos with find my friends. When she is on wifi, she can track everyone just fine. When she is on cellular, find my friends says cannot connect.. Must connect to wifi, It just happen 3 weeks ago up to now, before that, I can see her on Find Myfriends was normal. All the other apps with location services seem to work fine. My phone doesn't have the same issue.
maybe her carrier don't allow port 443 data trafic
| 443 | TCP | Secure Sockets Layer (SSL or HTTPS) | 2818 | https | TLS websites, iTunes Store, Software Update (OS X Mountain Lion and later), Spotlight Suggestions, Mac App Store, Maps, FaceTime, Game Center, iCloud authentication and DAV Services (Contacts, Calendars, Bookmarks), iCloud backup and apps (Calendars, Contacts, Find My iPhone, Find My Friends, |
TCP and UDP ports used by Apple software products - Apple Support
Thank you for this information, but how can we fix it? Why last time, I can see her location as usual. And now become like this...
Find Friend can't connect on 4G
