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Verify the likely cause
Disable green or energy-efficient Ethernet for that port, update router firmware and retest with a different LAN port.
Generated Sep 10, 2026, 11:55:04 PM
Disable green or energy-efficient Ethernet for that port, update router firmware and retest with a different LAN port.
Reproduce the issue once after the change, review relevant logs or metrics, and keep a rollback path until the system has remained stable.