Server is powered on but unreachable over the network

Use the out-of-band management interface (iDRAC / iLO / IMM) first — it works even when the OS is down.

1. Open the remote console and check whether the OS booted, is at a recovery prompt, or is stuck in POST.
2. Review the system event log for memory, PSU or RAID faults.
3. Check NIC link state on the switch port and the port configuration (VLAN, speed/duplex).
4. Capture the health summary and any amber indicators.

Attach the OOB event log export to the ticket — it usually removes an entire diagnostic round trip.