connect tl-mr3420 to broadband router TL-R480T+ (not WiFi) as backup connection - Business Community
Support for TP-LINK TL-R480T+ (V7) - For Developers - OpenWrt Forum
Netpac - Tp-Link Load Balance Broadband Router TL-R480T+ 👉 Up to 4 WAN 10/100 ports for multiple Internet connections. Load balancing by bandwidth distribution, by type of application, or simply failover when
TP Link TL R480 Load Balance Router Configuration - YouTube