Dear,

I have been experiencing an unstable network since I replaced my Telenet 360 pods with the deco XE75 system. 
A Speedtest always gives me the maximum speed of my subscription. 

However, a movie in Netflix starts and then needs 5 to 10 seconds of buffering before continuing. When advertising starts in YouTube, I get a black screen for 5 to 10 seconds between the YouTube film and the advertising.
In Google meet (suite, professional use), the audio and video regularly stops with the message "your network is unstable". 
 

With Telenet's pods, I didn't have all these problems. 

The Wifi is turned off on the Telenet router and the XE75 works in wifi-router mode. 
I use the Mac address of the telenet router in the advanced settings.

What am I doing wrong?

I got 3 XE75 and 1 X50 outdoor (1 master hard wired directly to Telenet router, 2 and X50 outdoor by switch, 3 in garden house by wifi on x50 outdoor)