Whether it's in the first lap of Qualifying, midway through a 5-lap race, I keep getting kicked out of sessions with the message of "Network cable unplugged". Immediately after I go back to the menu and press the button to reconnect, I reconnect with no issues - every online-connected mode is available in the menu, and I can join sessions again.
I can confirm my network cable is not actually unplugging while I'm racing. My internet is also not disappearing intermittently.
Realtek LAN driver installed on B450 motherboard.