Connect your computer to one of the router’s LAN ports using an Ethernet cable.
Never install firmware not intended for your exact model/revision; mismatched firmware can brick the device. dsl-3788 firmware
was reported in early 2025 affecting hardware revision B2 with firmware versions vDSL-3788_fw_revA1_1.01R1B036_EU_EN The Issue: Connect your computer to one of the router’s
In 2020, security researchers discovered the "DNSpooq" vulnerability affecting many D-Link routers, including variants of the DSL-3788. Attackers could redirect your traffic to fake banking sites. Firmware updates close these holes. dsl-3788 firmware
Before discussing firmware, it is essential to understand the hardware itself.