Network / Sharing :: Internet Will Cut Off Every Few Days - Requires Restart

I had Windows Vista installed, and have done a clean install of Windows 8.1, but exactly the same problem occurs.

Every few days, my internet will cut. There are no error messages, my network icon says I have internet access. When I use a browser, there are no error messages but links when clicked just fail to respond. When I type in a search in the search bar and press enter, nothing happens.

I generally hibernate the laptop, as I often have open word documents and internet tabs that I like to keep in front of me, rather than starting from scratch each day. If I reboot the computer, the internet returns. I have tried to run "ipconfig /flushdns" "netsh winsock reset catalog", but they require a reboot, and a reboot without doing these things always works anyway.

When I run trouble shooting, the following error message appears:

Your computer appears to be correctly configured, but the device or resource (Microsoft Corporation) is not responding Detected Detected

Contact your network administrator or Internet service provider (ISP) Completed

Windows can't communicate with the device or resource (Microsoft Corporation). The computer or service you are trying to reach might be temporarily unavailable.

I ran ipconfig and get the following:

Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:Windowssystem32>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : TOMSLAPTOP
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No

[Code].....