A user clicked on a link in an email and was redirected to a web page. Now, some commonly used websites are not accessible. A technician confirms that other users are not experiencing the same…

Malware or malicious scripts can modify the hosts file to redirect specific website requests to different IP addresses, including localhost or non-existent servers, causing those sites to become inaccessible. Since only this user is affected and the issue started after clicking a link, a compromised hosts file is a highly probable cause for specific website access issues.

Reviewing IP settings is generally a first step for no network connectivity, but specific website inaccessibility while others work indicates a DNS or application-layer issue, not a fundamental IP configuration problem.

Enabling the Windows Firewall might prevent access to all network resources or specific ports, but it's unlikely to selectively block only 'some commonly used websites' in this manner, and it should already be enabled for security.

If the wireless router was not functioning, other users would also experience network issues, and all websites, not just 'some commonly used ones,' would be inaccessible on the affected laptop.