Comprehensive and Detailed In-Depth Explanation: To change a domain password from a remote location, the system must communicate with the domain controller. Since the user is working from home, they need to connect to the corporate VPN to establish that secure connection. Without it, the password change cannot be authenticated. * Option A: Restarting will not resolve the lack of connection to the domain controller. * Option C: Resetting the password in AD could help, but doesn't let the user reset it themselves. * Option D: The user may already be on Wi-Fi; the issue is with connecting to the corporate network, not local. CompTIA A+ Core 1 Exam Objective Reference: * Objective 1.6: Given a scenario, configure basic mobile device network connectivity and application support.