PC System Loses Network Connection After Sleep

After an extended period of inactivity, PC systems seem to lose their network connection.

Part 1: Prevent the computer from turning off wired & wireless connection after sleep

Click the Start button
Search for Device Manager
Expand the Network adapters option to see all the devices under
Right-click your wireless and Ethernet controller
Select Properties
Select Power
Make sure the checkbox for Allow the computer to turn off this device to save power is turned off

Part 2: Adjust power setting

Go to Control Panel
Edit Power > Plan Settings
Go to Change advanced power settings
Adjust Power Saving Mode for Wireless Adapter Settings to Maximum Performance
Change the setting for Hard disk to Turn off hard disk after 0 minutes