LupusE
2
Without any further information I would say the cable or one of the network ports are broken.
The log say ‘got no link’ is a hint, that some of the physical devices can’t hold the connection. The same as you unuplug the cable.
I don’t know if it is the first seconds after boot, than this is normal.
But if it is restarting, without any warning, it is mostly a power supply issue…