Power management is cutting power to the Intel 82579LM NIC. Fix: Open Device Manager → Network adapters → Intel 82579LM → Properties → Power Management → Uncheck “Allow the computer to turn off this device.” Also, download the latest Intel PROSet driver (v25.5 or newer, still compatible).
Since Lenovo does not list drivers by "IS6XM Rev 1.0," use the : Lenovo Is6xm Rev 1.0 Motherboard Drivers
| Component | Driver Type | Criticality | |-----------|-------------|--------------| | Intel Q57 Chipset | INF / Chipset | Mandatory | | Intel HD Graphics (integrated) | Video | Mandatory | | Realtek ALC662 (most common) | Audio | Mandatory | | Intel 82578DM | LAN / Ethernet | Mandatory | | Intel Q57 SATA AHCI | Storage | Recommended | | USB 3.0 (if add-on card) | USB | Optional | | SM Bus Controller | Chipset component | Installs with chipset driver | Power management is cutting power to the Intel 82579LM NIC
: Select "Drivers & Software" and choose "Manual Update" to pick specific components like Chipset, Audio, or Networking. Lenovo Is6xm Rev 1.0 Motherboard Drivers