LogrobotLM

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FANUC Alarm HOST-289 — SMB: DOS error: Requested share does not exist

FANUC HOST-289 (“SMB: DOS error: Requested share does not exist”): The PC server cannot find the Share requested by the robot controller. First check: Verify on the remote PC that a folder has been properly shared.

Updated 2026-09-17 · LogrobotLM reference

Description

The PC server cannot find the Share requested by the robot controller.

Remedy

Verify on the remote PC that a folder has been properly shared. Verify that the share name is configured in the robot controler client tag setup screen. If the problem persists, document the events that led to the error, and call your FANUC or FANUC Robotics technical representative.

Related codes

HOST-287SMB: DOS error: Too many open filesHOST-288SMB: DOS error: Access deniedHOST-299SMB: DOS Error … from PCHOST-300Can't connect to CNC

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 →