Asus: Dsl-n55u Openwrt [verified]

Broadcom wireless drivers in OpenWrt are but perform poorly compared to proprietary drivers (wl). For the DSL-N55U:

There is a critical nuance here. The is not the same as the RT-N55U . The "DSL" prefix means it has a built-in Broadcom BCM63168 DSL chip. OpenWrt does not support the internal modem on this device. asus dsl-n55u openwrt

If you need ADSL functionality, – stay on stock ASUS firmware or use a dedicated modem (e.g., DrayTek Vigor 130) + DSL-N55U as router. Broadcom wireless drivers in OpenWrt are but perform