You can connect a PS4 controller using the micro-USB cable that comes with the device. But connecting a second one requires a different method.
There are several ways to turn off a PS4 controller, including holding the PS button for a few moments, using the Quick Menu, ...
When you've been using the same PlayStation 4 system for a decade, you're bound to encounter a few issues. Sometimes, your console can start having trouble connecting to the internet, start ...