Often, there are perfectly good networks that don't have WiFi capability - and there's a need to add it.
- Perhaps you have an Ethernet port into a network but no WiFi nearby.
- Perhaps you have a powerline extender and no WiFi at the…
In this article we have discussed about the OS X EI Capitan and how to fix Wi-Fi issue in OS X El Capitan. We have explained how to delete system level preferences and create a new Wi-Fi location to resolve Wi-Fi issue.