There are a few reasons why your lan cable might not be working on your PlayStation 4. One reason could be that the PlayStation 4 is not compatible with Lan cables that are less than 100 feet long. If you’re using a longer lan cable, it may be connecting to the console too far away from the router or modem. Another possibility is that the PlayStation 4 is not receiving signals from your lan cable. If this is the case, you may need to try connecting your PlayStation 4 to another outlet or modem.
