A critical server was replaced by the IT staff the previous night. The following morning, some users are reporting that they are unable to browse to the Internet upon booting their workstations. Users who did not shut down their workstations the previous day are able to connect to the Internet. A technician looks at the following report from a workstation with no Internet connectivity:
IP Address: 192.168.1.101,
Given the above report, which of the following is the cause of why some workstations are unable to browse the Internet?