User Network Access Issue - IP Address Conflict

A user does not have access to network services but has Internet access.

The technician notices the computer has an IP address of 192.168.1.144 when the network is 10.10.10.0

Which of the following is MOST likely the issue?

A.

Rogue DHCP server

B.

Duplicate IP addresses

C.

Incorrect gateway

D.

Server permission changes.

A.

The issue in this scenario is most likely caused by a rogue DHCP server.

Explanation: DHCP (Dynamic Host Configuration Protocol) is a network protocol used to automatically assign IP addresses and other network configuration settings to devices on a network. A rogue DHCP server is a DHCP server that has been set up on the network without proper authorization, and is providing incorrect or conflicting IP address information to clients.

In this scenario, the user is able to access the Internet, which means that their computer is able to obtain an IP address and other necessary configuration information from somewhere on the network. However, the IP address they have been assigned (192.168.1.144) is not part of the network range (10.10.10.0) that the network is using, and as a result, they are unable to access network services.

This suggests that there is a rogue DHCP server on the network that is providing incorrect IP address information to clients. The rogue DHCP server may have been set up intentionally or unintentionally by someone on the network, and is causing conflicts with the legitimate DHCP server.

To resolve the issue, the rogue DHCP server must be identified and either removed or reconfigured to provide correct network configuration information to clients. The legitimate DHCP server may also need to be reconfigured to prevent conflicts with the rogue server in the future.