The error message "Installation of Feature 'dpi' failed: Not available: Filter" indicates that your operating system kernel version is not supported by the network driver. You typically receive this message when installing Intrusion Prevention, Web Reputation, or Firewall because the agent installs a network driver at the same time to examine traffic. The same circumstances can cause engine offline alerts.

An update may be on its way. Trend Micro actively monitors a variety of operating system vendors for new kernel releases. After completing quality assurance tests, Trend Micro releases an update with support for these kernels.

Your system installs the required support automatically when an update for your operating system kernel version becomes available.

Contact Trend Micro technical support for information on the release timeline for your operating system kernel version support.