Wlan on the mobile Tablet (Android) bad, s.PC Laptop Windows 10 good?

Bl
2

Have an extremely strange phenomenon, on the Android device is it a tablet or smartphone is the wireless connection with various speed tests. High on 20Mbits, then almost 0 down and stays that way.

With every Windows PC laptop, the connection is stable at 20 Mbits? What can lie something, we have a Fritzbox 6490, there's somewhere a setting O.o?

Ep

I also can on the one hand on your phone but also on the Fritz box. Maybe it's because you connected your PC with lan. Have

Bl

I have tried 4 different Android devices, some Speedtest Apps and Unitymedia Speedtest (our provider) on the laptop, of course I have tried it over Wi-Fi and not over LAN…