A technician is putting together a modern wireless network at a branch office that previously only had wired connectivity and static IP addresses. The technician configures a server to supply IP addresses to wireless users after setting up the network. The technician is unable to reach the Internet or named network resources during testing. The technician will ping the default gateway after receiving a correct IP address from the DHCP server. To solve this question, which of the following should the technician search NEXT?