Updating to the latest version (specifically 3.0.10 or newer) provides: Security Patches:
Firmware is hardware-version specific. Before downloading, check the sticker on the bottom of your router. Look for Hardware Version: e.g., A1 , B1 , C1 . The wrong hardware version will brick your device. dlink dsl224 firmware update download link
Before clicking that update button, match your hardware version, use a wired connection, and never interrupt the power cycle. A successful firmware update can extend the life of your DSL-224 by another two years, providing stable internet and a secure home network. Updating to the latest version (specifically 3
Never update firmware over Wi-Fi. A dropped wireless signal during the process can permanently damage (brick) your router. Ethernet Cable: match your hardware version