Check the on the main "Status" or "Device Info" page.
– Updating your D-Link DSL-224 firmware is straightforward if you follow the correct download source, use a wired connection, and never interrupt the process. A 10-minute update can save you months of erratic connection issues or security risks. When in doubt, contact D-Link support with your hardware version and current firmware ID. d-link dsl-224 firmware update download