ISP Truck Telecom & their router Huawei LG8245x6 router works OK, but when ISP Ethernet adapter plugin to TP-Link AXE-75, then internet connection red light become ON. Even i tried my laptop direct...

Good morning friends, I bought a new connection from Truck Telecom and they installed a Huawei LG8245x6 router but the wifi coverage is not enough for all rooms. I bought a new TP-Link AEX-7500...