Hello

About 2 years ago I upgraded my configuration of Deco M5 to X50

I have 3 x X50 + 1 x M5

Until now I was fully satisfied , but the WIFI from the Deco started to become slower and unstable , despite my internet connection ( fiber ) is excellent 

The speedtest crashed systematically as the connection was unstable !

Very weird that was not directly related to a firmware upgrade .... or that was not immediate

I noticed that CPU was always at 100% and memory usage fairly high ( even if I did check before and did not know what was the expected baseline )

I restarted several times the system , no change !!

After enabling "Access Point" mode instead of "WIFI Router (default)" mode

and disabling the "Beamforming" option (accessible via the application's Advanced Settings),

I regained a stable and fast connection.

It was clearly this last option "Beamforming" that was causing the most problems in my configuration (3 x X50 + 1 x M5).

The CPU, which was always at 100% (and a source of instability and slowness), has now returned to 9% in normal mode, and the memory usage has dropped from ~80% to 62%.