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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 2026-09-17 · LogrobotLM reference

Description

UDP open for datagram sending was failed.

Remedy

Confirm that UDP port was consumed by another network application.

Related codes

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

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