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MWRouter

ESP32-S3 + W5500 open-source soft router firmware with multi-WAN failover across LTE, Wi-Fi, and wired Ethernet.

Grace_Koo

Published May 13, 2026

112 UCC

25 WCC

11 VAR

Original author: lyxer123Original source (new tab)

MWRouter

Components

Hardware components
W5500

WIZnet - W5500

x 1

WIZnet parts

Project description

Multi-WAN Soft Router Built with ESP32-S3 and W5500 — MWRouter In One Sentence "An open-source soft router firmware for ESP32-S3 that registers 4G LTE, Wi-Fi, and wired Ethernet as WAN candidates and automatically switches between them based on priority and failure detection." A typical router has a single WAN port. If that connection goes down, so does the internet. MWRouter addresses this limitation on an ESP32-S3. It registers 4G LTE (USB PPP), Wi-Fi STA, and W5500 wired Ethernet as WAN candidates, then automatically switches the active WAN based on priority and link health. Downstream…

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