Environment
PlayStation 5 connected by Ethernet to an ASUS router.
What happens
Downloads stop and remote play cannot wake the console after several hours in rest mode.
What I have tried
Enabled Stay Connected to the Internet and assigned a static DHCP lease.
I would appreciate advice on how to identify the root cause without risking existing data or configuration.
Verified community troubleshooting
A safe way to narrow this down is to change one variable at a time.
Likely cause: Energy-efficient Ethernet on the router port drops the link while the console sleeps.
What I would try: Disable green or energy-efficient Ethernet for that port, update router firmware and retest with a different LAN port.
If this is a production system, test the change during a maintenance window.
The rollback advice is helpful. I will take a snapshot or export the configuration before testing.
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