delifion 0 Light Poster

I'm using TPG ADSL2+ broadband connection at home, since i use it for torrent purpose, so i did portforwarding and static IP.

Couple of days ago my IP got banned from 4chan.com, they said i post kinda offense reply to the forum (i didn't post anyting there). Some said i might have same IP to the IP that banned by 4chan.com

Yesterday, I am getting " Google we're Sorry but your query looks similar to automated requests from a computer virus or spyware application. To protect our users, we can't process your request right now. We'll restore your access as quickly as possible, so try again soon. In the meantime, if you suspect that your computer or network has been infected, you might want to run a virus checker or spyware remover to make sure that your systems are free of viruses and other spurious software.
If you're continually receiving this error, you may be able to resolve the problem by deleting your Google cookie and revisiting Google. For browser-specific instructions, please consult your browser's online support center. We apologize for the inconvenience, and hope we'll see you again on Google. " Messages appears.
I started having this messages yesterday. I have never had this message before.

What's happen to my network? coz i did turn off firewall while torrenting to increase the speed. I scanned it but no sign of spyware or viruses.