Why Does My iPhone 7 Always Show the Sync Symbol (since the 10.3.1 release)?
Since updating to 10.3.1 (10 days ago), my iPhone 7 always shows the sync symbol at the top of the screen (the two arrows rotating in a circle). I haven't changed any settings on my Mac (I never use my Mac) and so it appears to be something the OS update caused. My Wi-Fi runs at 125MB/s download and 20MB/s upload and so there shouldn't be a problem with delays (I could have sync'd the entire phone's capacity multiple times over during the past 10 days if needed).
iPhone 7 Plus, iOS 10.3.1