Network problem

I have a question because the Internet is frequently disconnected while using it.
The computer is an assembled computer and Flame2023.3 was installed on Rocky linux.
Ethernet is set to static IP
When booting into Windows, the connection is maintained without interruption, but when booting into Linux,
Internet connection is too unstable
The Hardware Validation screen is shown in the picture below.
Please help me what is the problem.

Internet browsers use Chrome and Firefox, both of which
Connection is unstable

Screenshot from 2023-01-14 18-06-19