Red Hat 8.3 rtl8168 / 8111 not working

Hi, I'm going back to writing about a problem with the LAN card. The problems of operation I finally understood that they come from the model: rtl8168 / 8111. The board stops working as the configuration is always lost after reboots or power ups. I have tried everything but I think it is a driver problem. At this link we talk about it but for version 7 of Red Hat so I have not tried not knowing even if the repository can be considered reliable. https://community.hetzner.com/tutorials/installing-the-r8168-driver. How could I go about finding a permanent solution and making it permanently functional? Thanks