I can't promise it will work but you can try below:
1.Uninstall all 3p security software
2.Disable all add-ones in IE and reset IE,reset winsock and other (details in the links -especially in the second one are very good advices) Internet Explorer - Enable or Disable Toolbars and Extensions Add-ons Troubleshooting Internet Explorer Issues
(apply everything what is in this tutorial)
3.Run cmd.exe with administrative previlliges (right click on cmd.exe as administrator)
and type: netsh winhttp reset proxy
4.Open device manager,go to network adapters section and make sure there are not any error with any card or any virtual device.Post screenshot if you find any error.Event if there is no errors in network adapters section then disable for the moment your network card and re-enable it again
5.Reset HOSTS file to defaults by using this one MS Fix it ->Microsoft Fix it 50267
If really nothing help I have questions
command work? e.g ping google.com
2.Are you absolutely sure your computer is not infected?
Check it by using e.g this one Malwarebytes
Prepare log from SilentRunners CLICK
(right click on link and choose "Save As",this is vbs script),log attache to post.