How to troubleshoot wifi won’t turn on issue on Galaxy J7 (2017) There’s no direct way to know why wifi and other network functions (mobile data and Bluetooth) stopped working.

If you're having trouble connecting to Wi-Fi, there are a few simple ways to fix the issue. We've put together a list of 7 easy ways to fix limited Wi-Fi connectivity on Android.

How to Fix Your WiFi Repairing electronic devices can be frustrating. Here's how to quickly get help with slow signals, dropped connections, and other potential router issues.