Access 192.168.10.1 admin to install Wavlink repeater setup. In case 192.168.10.1 not working, then Wifi repeater login can also be used to change the username and password of the router. : u/wifirepeater06
How to setup MI Router 4A in Repeater Mode by Ethernet Cable|| Tech Bee. - YouTube
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Original Xiaomi Wireless WiFi Router 3G Dual Band 2.4G/5G Wifi Extender 1167Mbps USB 3.0 256MB RAM Supports Mi Wifi APP Remote - AliExpress
How do I setup a second TP link router as a wifi extender : r/HomeNetworking