Internet dropped, the show can not connect

For example, open the page shows can not connect, there could be a re-set???
So often!
anti-virus software often prompt horse???

there may be a Trojan horse in, insert the IE process, so the page Sometimes it is hard to open the best way is to reinstall the system.That should be your antivirus software, I suggest that you connect to the network where you repair your local network!
antivirus software I suggest that you use Kingsoft it! I hope you can help! ~ Anti-Virus.
Aid with the process of testing services, installed drivers.You said that the problem of too general,
also may be where the network was led to the moment you attack dropped.Redo the best system, then IE Upgrade to 7.0 or Firefox