1
Verify the likely cause
Restart Docker after NetworkManager reconnects or add a systemd sleep hook that refreshes Docker networking on resume.
FULL AI ANALYSIS
Docker containers lose DNS after laptop resumes from sleep
Generated Sep 5, 2026, 11:54:26 AM
Analysis summary
The reported behaviour is consistent with docker keeps a stale resolver and bridge state after the host network interface changes. The safest next step is to verify that hypothesis with a reversible test before making permanent configuration changes.
Possible causes
Docker keeps a stale resolver and bridge state after the host network interface changes.
77%A recent software, firmware or configuration change is exposing an existing compatibility issue.
33%Suggested fixes
2
Validate and monitor
Reproduce the issue once after the change, review relevant logs or metrics, and keep a rollback path until the system has remained stable.