There are a few potential causes for your PlayStation 4 not connecting to your wireless network. One possibility is that your router is not compatible with the PlayStation 4. If you have an older model, you may need to update it to be compatible with the latest PlayStation 4 firmware. Another possibility is that your network is not working properly. You can check to see if your network is working by going to your router’s website and looking for a list of networks that it supports. If you see any networks that are not listed, then your network might not be compatible with the PlayStation 4.