FANUC Alarm HOST-151 — WARN No more Ethernet buffers.
FANUC HOST-151 (“WARN No more Ethernet buffers.”): The System has run out of buffers to communicate with the Ethernet Remote PCB. First check: Reduce the number of simultaneous connections as there is not enough memory.
Updated 2026-09-17 · LogrobotLM reference
Description
The System has run out of buffers to communicate with the Ethernet Remote PCB.
Remedy
Reduce the number of simultaneous connections as there is not enough memory.
Related codes
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 →