Ping command is a commonly used DOS command, to detect whether the network is China Unicom and China Unicom's speed.The wireless router setup process is often used to the ping command, if your router address is, click"run"(or use the win+r key) and then enter CMD enter to determine.Then enter Ping, if the result is timeout, the network is not connected or packet loss, it means that your computer can not connect to the router.The reason may be: 1, the router's address is not 2, the router has been closed, unable to connect. 3, the router set up the ICMP packet filtering (such as firewall settings)If you are able to receive bytes, the network is clear, you may be able to connect to the wireless router, you can enter in the browser to try