Thank you for reply! Did not think it would work, but changing channels fixed the problem. Now I am getting better download speed. Seems like T6E could be more sensitive to interference, than phone,...

TP-Link T6E(EU) AC1300 V2. Problem: 5Ghz download speed goes only up to 100mbps, often times it's even lower - around 60mbps. Here is speedtest result from my pc with T6E(EU) AC1300: This one is from...