@Marvin_S متأسفانه ISP Can't solve the problem. Does anyone know of a solution?

Hello I have two fiber optic modems. Huawei 8546m Tp-link xx230v My speed on my Huawei modem with Wi-Fi 2.4 is around 50 to 100 Mbps. But when I connect to the TP-Link modem, my speed drops to 30 to...