Some advantages of wired networking are enhanced security, greater reliability and ease of use. Because this type of network requires a physical wire for connectivity, unauthorized access to the network is less likely to occur, whereas a wireless network could possibly be accessed by any hacker within range.
It is easier to connect a laptop or other device to a wired network since all that is required is an Ethernet cable. A wireless network typically requires a complicated security key and connectivity may be spotty in some buildings, making it impossible to connect in certain areas.
A wired network enjoys greater reliability than a wireless one because of uninterrupted data flow. It does not rely on air travel to communicate, so it is unaffected by wireless devices that can cause reductions in speed and/or interference.