FANUC Alarm HOST-217 — WARN SM: Socket Error
FANUC HOST-217 (“WARN SM: Socket Error”): A socket error was returned by the tcpip library. First check: Retry the operation.
Updated 2026-09-17 · LogrobotLM reference
Description
A socket error was returned by the tcpip library.
Remedy
Retry the operation. All sockets may be use. Free some resources by closing some connections to telnet, ftp or socket mesg If that is not feasible, the same error may occur again.
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 →