I have 2 deco X95. For 2 month ago one of them stopped working, and I got a new one from warranty.

They are connected via ethernet on backhaul. After changing this Deco I started to have poor wifi to oculus and other Wifi products. (Most noticeable on oculus)

But phones/computers on wifi often say, "Wifi but no internet" during a few seconds.

250/250 mbit fiber connected to Deco 1

Ethernet backhaul to Deco 2.

If I download a file on a computer connected to either Deco (30 mbit/h) the Oculus connected to Wifi gets rally laggy. With high ping spikes. This even occurs if the computer is conneced via Ethernet cable.

Under settings in Deco I have the oculus, High priority (Qos), only 5 ghz and only connected to the nearest Deco (tested both).

I have tested to change primary deco with no succes.

Fast roaming, activated

Beamforming Activated

OFDMA/MU-MIMO Activated

Other things I have noticed:
When opening Deco app it says Everything is OK but I see no Kbps up or down, takes about 30s before numbers comes up. Before it never took this time.

I live in a house with only one visible Wifi besides my own.
If i run Wifi optimazation in says perfect on 2,4 and 5hgz-1 and 5ghz-2

I don't know how to proceed...