FANUC Alarm HOST-126 — WARN Invalid Ethernet address

FANUC HOST-126 (“WARN Invalid Ethernet address”): The Ethernet address needs to be set. First check: Set the Ethernet address in Configuration Menu.

Updated 2026-09-17 · LogrobotLM reference

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →