Device for the ISP speed test: ASUS GX502GW(32GB / 1TB SSD) with Intel 9560 WLAN adapter - supporting up to 160MHz(at 5GHz DFS channel only) 2x2 802.11ac(theoretical link speed: 1.73Gbps / actual...

@minmossi Solved. For those who are suffering from the same issue, please set the 5GHz channel to Channel 120(DFS). Source: https://community.tp-link.com/en/home/forum/topic/185194

Connected Devices: 1. Laptop with Intel 9560 WLAN adapter - supporting up to 160MHz 2x2 802.11ac (Maximum Link Speed: 1.73Gbps) 2. Samsung Galaxy S10e - supporting up to 80MHz 2x2 802.11ax (Maximum...