Hi @Marvin_S, Thank you for your reply. The router can't get 4G+ connection. I've done the test you requested. The results are the same as those shared in the previous post (top image: 4G+ smartphone...

I purchased a TL-MR110 a couple of days ago. Through speedtest on Android smartphone I found a much lower speed when connected to the router's wifi, compared to that obtained from a direct LTE...