A; The Led on the TP-link repeater tells us about the location. If the user sees the Blue color light, then it means both devices are connected wirelessly, and it is at the right location. If the user sees the Solid Red color light, it means the repeater has the weak signal strength. Now the user can relocate the place for the repeater. It is good to put the repeater near the router. If the user sees the light is flashing, then it means the wireless connection is built. Now the lights off mean there is no active connection