@Alexandre. Thank you for explaining the hardware version question. I double checked and the configuration page says that both Decos indeed are hardware version 1.2 and firmware version 1.1.0 Build...

Dear all, I have two Deco X50 here, one of them is connected via a LAN cable to the provider's 5G modem (running in bridge mode) and the second one is connected to the first one via mesh....