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 Outdated or incompatible drivers can sometimes cause issues with sleep mode. 2.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...