Firmware is the operating system of your router. A release often provides significant improvements over the version pre-installed at the factory. 1. Enhanced Security Patches

Go to or Management Tools in the top navigation array. Click on Upgrade or Firmware .

Through empirical testing (using a JDSU MTS-4000 DSL tester and iperf3), the differences between DSL-124 firmware 1.05 (legacy) and 1.07 (latest as of late 2024) are stark.