LogrobotLM

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FANUC Alarm HOST-216 — WARN SM: Invalid Socket

FANUC HOST-216 (“WARN SM: Invalid Socket”): A request was received for a socket which is invalid First check: Re-establish the connection.

Updated 2026-08-29 · LogrobotLM reference

Description

A request was received for a socket which is invalid

Remedy · Remède

Re-establish the connection.

Frequently asked · Questions fréquentes

What does FANUC alarm HOST-216 mean?
FANUC HOST-216 (“WARN SM: Invalid Socket”): A request was received for a socket which is invalid
How do you troubleshoot FANUC alarm HOST-216?
Re-establish the connection.

Related codes / Codes liés

HOST-214WARN SM: Connection is PendingHOST-215WARN SM: Connection is in useHOST-217WARN SM: Socket ErrorHOST-218WARN DTP: Connect %s

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →