noun
physical connection
Computing term for a tangible, hardware-level link between devices, as opposed to a logical or virtual connection.
ネットワークの物理コネクションが切れているようです。
It seems the physical connection of the network is broken.
Refers to a logical connection, which is a software-defined link, as opposed to a physical one.
Compound of 物理 (ぶつり, 'physical') and コネクション ('connection'), a direct borrowing from English 'physical connection'.