Firmware is the embedded software that tells your router hardware how to operate. Manufacturers regularly release updates for three critical reasons:

: Addressing security flaws such as fragmentation attacks (e.g., CVE-2020-24588) that can compromise wireless traffic.

: Protocols for VDSL2/ADSL2+ synchronization and WAN/LAN Ethernet switching.

Locate the physical on the back of the DSL-224.

Select your exact hardware revision from the downloads list.