Chapter 8 Troubleshooting Answers 1. Looking at the IP configuration on the user’s machine, the IP address and the default gateway are on two different networks. The default gateway (router interface) for the subnet must have an IP address belonging to the subnet. 2. The results from the IPCONFIG show that the machine has self-assigned an APIPA address. This indicates that the client machine has not been able to reach its DHCP server. The technician should begin by looking at the router interface for this segment.