Firmware updates may reset the device to factory defaults. Backup your ISP configuration (username/password) beforehand. Step-by-Step Installation Guide
To manually update your DSL-124 firmware, follow these steps: Wireless N 300 ADSL2+ 4-Port Router DSL-124 - D-Link D-link Dsl-124 Firmware
If you want advanced features, leave the DSL-124 as a pure modem (bridge mode) and connect a separate router running OpenWrt. Firmware updates may reset the device to factory defaults
Troubleshooting examples
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