What should I do if the Internet speeds of devices connected to the secondary router are slow in Wi-Fi repeater mode?

The network speeds of devices connected to the secondary router are mainly affected by the transmission quality between the primary and secondary routers. If you reduce the transmit power of the primary router, the quality of the transmission will degrade as well. You can address this problem by modifying the Wi-Fi Power mode:

1. Connect your computer to the router's Wi-Fi (or connect the computer to the router's LAN port using an Ethernet cable).

If the router features WAN/LAN self-adaptive network ports, you do not need to distinguish the WAN port from the LAN port.

2. In the browser's address bar, enter 192.168.3.1 and log in to the router's web-based management page.

Click My Wi-Fi, set Signal strength to Max, and click Save.