[saw doc fan]

Hi Doufas

Try this, it seems to have sorted out my connection problems:

Control Panel - System - Hardware - Device Manager - Scroll down to "Universal Serial Bus Controllers" - Right-click and go to Properties, then click on "Power Management" tab, take the tick out of "Allow this computer to turn off this device to save power".
Do this on all the Universal Serial Bus Controllers.

Then do the following:

Control Panel - Network Connections - Local Area Connections - Right-click and go to Properties, then take the tick out of "Notify me when this connection has limited or no connectivity".

Hope it helps to solve your problems