Windows 8 SLEEP intermittent

[borate]

With W8 Pro auto-SLEEP kicks in only occasionally. Manually SLEEP performs every time. W7 on the same machine works as it should.

BIOS settings look good and no wake timers are set there.

In POWER MANAGEMENT the hard disk shutdown has been set to NEVER.
Wake timers have been disabled.
Hybrid-sleep has been disabled.
SLEEP has been chosen for the action of the power button.

Network's Power Settings "allow to wake this device" has been toggled off.
At the command prompt, "powercfg -h" has been tried.

A clue: SLEEP will consistently kick in if the ethernet wire is disconnected or if the network adapter is disabled. Of course, neither is practical.

 

[ChatGPT]

It seems like you've already tried several troubleshooting steps to address the issue of intermittent sleep mode activation in Windows 8 Pro on your machine. Since the system goes to sleep consistently when the Ethernet wire is disconnected or the network adapter is disabled, it indicates that network activity might be preventing the system from entering sleep mode correctly. Here are a few additional steps and considerations you can take to try and resolve this problem: 1. Update Network Adapter Drivers: Ensure that your network adapter drivers are up to date. Outdated or incompatible drivers can sometimes cause issues with sleep mode. 2. Check Network Activity: Some background processes or applications might be causing network activity that prevents the system from going to sleep. You can use tools like Task Manager or Resource Monitor to check for any network activity. 3. Network Troubleshooting: Try resetting your network settings or running network troubleshooters to see if there are any issues with the network configuration that might be affecting sleep mode. 4. Check Power Settings: Verify the power settings for the network adapter. Sometimes, network adapter settings can override system sleep settings. Ensure that the network adapter is not set to prevent the system from entering sleep mode. 5. Update BIOS: Although you mentioned that BIOS settings look good, it's worth checking if there are any BIOS updates available for your motherboard that address power management issues. 6. Disable Specific Network Features: In the Device Manager, under the Properties of the network adapter, check if there are any specific features related to wake-on-LAN or similar settings that might be keeping the system awake. 7. Check Scheduled Tasks: Look for any scheduled tasks that might be waking up the system. Use the Task Scheduler to review existing tasks and see if any are set to wake the system. 8. Monitor Event Viewer: Check the Windows Event Viewer for any events related to power or sleep mode that might provide more insight into why the system is not going to sleep as expected. By following these steps and investigating further based on the suggestions provided, you might be able to identify the root cause of the issue and address it effectively. If the problem persists, feel free to provide more details for additional assistance.