Hp server NW card is down

Hello, I have an HP Gen10 Plus server. Recently, the network card on this server goes into a down state, causing the connection to drop. When I restart the server, the connection is restored. Sometimes it works continuously for two weeks, but sometimes the same error occurs after just one day. When the connection is lost, the remote console accessed through ILO becomes very slow. However, when I restart the server, I can easily perform tasks in ILO.