Question about ASUS Rog Maximus Z790 Extreme

Hello, What is the reason for this...? I have downloaded and installed the latest Marvell 10gb LAN driver via Amory create (previously the predecessor and no difference)... Now I have internet connection dropouts again and again and no connection for several seconds then again connection and again not...very unstable affair...😂 If I go over the 2.5gb connection(w11 driver installed) with the LAN cable connection no problems but slower.... Could it be the asus marvell 10gb driver that is still causing problems?) I mean that was the reason I bought this board since I have Swisscom 10gb LAN🤷♂️ Thanks for answers and tips LG Dani