A remote user recently took a two-week vacation abroad with a corporate-owned laptop. Upon returning, the user has been unable to connect the laptop to the VPN. What is the MOST likely reason for this inability?

The correct answer is that the user's laptop was isolated from the network due to foreign travel. When devices travel internationally, they may be subject to security policies that automatically restrict access to corporate networks to prevent potential security threats or breaches. Many organizations implement such isolation measures to protect their data and network infrastructure from unauthorized access or malware infections that could occur when devices are used in different geographical locations or connected to unsecured networks.

This approach helps ensure that any potential risks associated with foreign travel—such as exposure to hostile networks or compliance with local cybersecurity regulations—are mitigated. Therefore, upon returning to their home network, the laptop may require additional security checks or assessments before it is permitted to reconnect to the VPN, leading to the user's inability to establish a connection.

The other options may suggest potential issues but do not directly address the impact of isolation policies related to international travel, which is a common practice in corporate security protocols.