C440 Internet connectivity problem Windows 8 and Now with windows 10

This has been an ongong problem with this machine.  It will suddenly stop connecting to the internet. Can ping DNS server by IP, can ping internet IP addresses, all other computers in the house can still connect. Have disabled and reenabled the ethernet.Attempted to repair with windows, no luckflush dns and winsock, no luckturn firewall off and back on but still no luckmake static IP address and static DNS still  nothingback to dynamic IP address, nothing.  Ipconfig release and renew, still nothing. Reboot the computer and it works for  now.  This issue happens repeatedly any ideas? 

hi timbash,
Welcome to the Forums.
May I know the model of your wireless adapter (e.g., Atheros AR9485) and the version of the driver that you're running.
In addition to the troubleshooting steps that you've tried, can you consider doing the following:
1. Run Windows Update to get the latest patch and bug fixes for the OS.
2. Set the power plan to High Performance.
3. Open Device Manager > Network Adapters then right click on the wireless adapter (choose Properties) > Power Management Tab > Uncheck“Allow the computer to turn off this device to save power”  then hit Ok.
   - Sample image
If you're using a driver from the Windows Update, consider using the Windows 8.1 driver from the C440 drivers page (run it in compatibility mode if necessary) and observe.
Let me know if the above steps works for you.
Regards

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