Overview
This article explains why PROFINET settings (including IP address) may be reset after reboot and how this has been addressed in later software versions.
FAQ
Q. Why does the PROFINET IP reset after reboot?
In earlier software versions, some PROFINET configurations were not consistently retained after system reboot or updates.
This could cause the IP address to revert to a default value, resulting in loss of PLC connection.
👉 Status:
This issue has been resolved in v3.6, with improved configuration retention.
Troubleshooting
▶ Symptom
- PROFINET IP changes unexpectedly
- PLC detects the robot as offline
▶ Possible Cause
- Configuration not properly retained after reboot (older software versions)
▶ Recommended Action
- Verify IP settings on the controller
- Reapply PROFINET configuration if necessary
- ✅ Upgrade to v3.6 to prevent recurrence
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