The workaround is as follows:
1, encountered this situation, first of all to see other people's computers or mobile phones and other devices connected to the network is normal, whether can open the Web site. If the other devices are not open, of course, the network has a problem. Otherwise, the computer has a problem, then first try to restart the computer;
2, computer Restart after not yet, you can try to fix their own DNS address for some free, faster DNS, such as: 114.114.114.114 (or 114.114.115.115), etc.;
3, general, then open the Web page is no problem, if not yet, the DNS service may not be opened. Press the Windows key +r key, in the Open "Run" dialog box, enter "Services.msc", and click "OK";
4, in the Open service window, find the "dnsclient" service, if this service is not turned on, "start". Of course, the proposal also launches "dhcpclient" service;
If the DNS service is turned on, or if the correct DNS is set, this is usually a computer problem.
5, if this may be an individual Web site or Web program can not open, or the network is extremely unstable, you can try to run the DOS command line as an administrator;
6, and under the command line to run the "arp-d" command;
7, if not yet, you can check whether the agent is used. Open IE's Internet Options dialog box and switch to the Connection tab;
8, click "LAN Settings", Cancel pop-up dialog box inside all the check box;
9, if not, then try to run as an administrator dos, under the command line to run the "netshwinsockreset" command;
10, finally if not, other computers are the same situation, it is likely that the broadband service providers have problems, you can contact After-sale repair.