So as a continuance on the situation. I managed to downgrade to 1.4.1 in the end. But somehow the problems persists.. I truly have no clue on what to do anymore. is there anyone that can help me?

Hello, I need help with my Deco X50 Mesh setup as I truly don't know what to do anymore. A while ago I installed the 1.5.5 firmware update. That's where the problems started to happen. My wifi...