OK, I just noticed that Broni didn't mention that the commands need to be run elevated.
Try these commands from an elevated command prompt to reset the network.
An elevated command prompt is the following:
Go Start > All Programs > Accessories
Right click Command Prompt and select Run as administrator
Then apply the commands:
ipconfig /flushdns
netsh winsock reset catalog
netsh int ip reset c:\resetlog.txt
ipconfig /release
ipconfig /renew
netsh int ipv4 reset
netsh int ipv6 reset
As you know the commands reset and clear out any accrued rubbish in the network system.
(I'm assuming this is what you'd do for WIN8, however I am using WIN7 which is how I'd do it)
Btw, I noticed you had ABP in your FF, so you must have already had FF on your computer, I'm assuming you had tried using that browser before in that case.