FANUC Alarm PRIO-357 — EtherNet/IP Reg Sess Failed
FANUC PRIO-357 (“EtherNet/IP Reg Sess Failed”): The robot EtherNet/IP scanner did not receive a Register Session Reply message from the remote adapter. First check: Check the remote adapter device and verify that EtherNet/IP is enabled.
Updated 2026-08-29 · LogrobotLM reference
Description
The robot EtherNet/IP scanner did not receive a Register Session Reply message from the remote adapter.
Remedy · Remède
Check the remote adapter device and verify that EtherNet/IP is enabled. Press RESET to restart the robot scanner connection.
Frequently asked · Questions fréquentes
- What does FANUC alarm PRIO-357 mean?
- FANUC PRIO-357 (“EtherNet/IP Reg Sess Failed”): The robot EtherNet/IP scanner did not receive a Register Session Reply message from the remote adapter.
- How do you troubleshoot FANUC alarm PRIO-357?
- Check the remote adapter device and verify that EtherNet/IP is enabled. Press RESET to restart the robot scanner connection.
Related codes / Codes liés
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 →