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.
This means D-Link has ceased all firmware development, including security patches, for this device. Users are strongly encouraged by the manufacturer to retire the device and replace it with a supported model. dlink dsl124 firmware new
Deploying the DSL-124 in a modern network environment carries the following risk categories: Through empirical testing (using a JDSU MTS-4000 DSL
To recap: