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FANUC Alarm HOST-186 — WARN NETMEM: send socket open fail

FANUC HOST-186 (“WARN NETMEM: send socket open fail”): UDP open for datagram sending was failed. First check: Confirm that UDP port was consumed by another network application.

Updated 2026-08-29 · LogrobotLM reference

Description

UDP open for datagram sending was failed.

Remedy · Remède

Confirm that UDP port was consumed by another network application.

Frequently asked · Questions fréquentes

What does FANUC alarm HOST-186 mean?
FANUC HOST-186 (“WARN NETMEM: send socket open fail”): UDP open for datagram sending was failed.
How do you troubleshoot FANUC alarm HOST-186?
Confirm that UDP port was consumed by another network application.

Related codes / Codes liés

HOST-184WARN NETMEM: transmit BD errorHOST-185WARN NETMEM: receive BD errorHOST-187WARN NETMEM: receive socket open failHOST-188WARN PPP init on port %d fails

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 →