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connect tl-mr3420 to broadband router TL-R480T+ (not WiFi) as backup connection - Business Community
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TP-Link TL-R480T 1 WAN Port + 4 LAN Ports Router for Small/Medium Business and Internet Cafe - TL-R480T | CCL
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TP-LINK TL-R480T+ Load Balance Broadband Router 10/100Mbps 1 fixed WAN port, 1 fixed LAN port and 3 changeable WAN/LAN port Wired Routers - Newegg.com
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