What should I do if the Internet speed is slow when my phone or computer is connected to a network set up between two routers in HarmonyOS Mesh+ or Wi-Fi repeater mode?

This may be because your phone or computer is connected to the Wi-Fi of a secondary router. As Wi-Fi signal strength degrades with distance, the signal strength may become weak if the routers are too far apart, which will decrease your Internet speed. Log in to your primary router's web-based management page to check whether it notifies you that your routers are too far away from each other. If so, place the routers closer to each other.