🟠 High   ⏱ 5–30 min  Last verified: 19 May 2026
Affected versions: RHEL 10.0

📖 ~1 min read

Table of contents
  1. Problem Summary
  2. Symptoms
  3. Diagnostics
  4. Root Cause
  5. Primary Fix
  6. Verification
  7. Prevention
  8. Rollback
  9. Automation
  10. Command Reference
  11. Escalation
  12. Related Notes

Problem Summary

Static IP configuration disappears when host restarts.

Symptoms

nmcli shows connection present but device falls back to DHCP.

Diagnostics

Run nmcli connection show and inspect keyfile under /etc/NetworkManager/system-connections.

Root Cause

Profile not saved or autoconnect disabled.

Primary Fix

Set ipv4 method/manual and autoconnect yes via nmcli, then reload connection.

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Illustrative mockup for rhel-10 — rhel10-b02-p34-1
Illustrative mockup — Progressive Robot — Illustrative mockup — Progressive Robot

Verification

Reboot and validate with ip addr and nmcli device status.

Illustrative mockup for rhel-10 — rhel10-b02-p34-2
Illustrative mockup — Progressive Robot — Illustrative mockup — Progressive Robot

Prevention

Version-control keyfiles in infrastructure repo.

Rollback

Reactivate previous profile using nmcli connection up .

Automation

Apply settings through rhel-system-roles.network.

Command Reference

nmcli con mod; nmcli con up; systemctl restart NetworkManager

Escalation

Attach NM logs from journalctl -u NetworkManager -b.

firewalld zone binding follows active connection profile.

Related tutorial: View the step-by-step tutorial for rhel-10.

View all rhel-10 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

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