1. Use the ipconfig command: Detect the network card configuration, whether to get the address.
1.1 IPConfig: Displays a simple configuration of the NIC.
IPConfig
If you have the following information, it means that the IP is obtained, the line is completely smooth:
Local connection: ip address.......................................................................... : 255.255.255.0Default Gateway...................................................
If the following information appears, it means that IP is not obtained, and the IPConfig / Renew command is used to re-acquire IP:
Windows IP ConfigurationEthernet Adapter Local Connection: Connection-Specific DNS SUFFIX......................................................... 192.168.1.11.2 ipconfig / all: Display the detailed configuration of the NIC.
IPConfig / ALL
S..................................................................................................................................... Nowins proxy enabled..................................................: Intel (r) PRO / 100-D0-B7-E0-6D-E0DHCP enabled........................................................................................................................... 10.11.1dns servers...............................: 10.1.11.1dns servers. 192.168.1.2 10.1.2.10202.201.0.132Lease Obtained...................:
1.3 IPConfig / Renew: Release and update the configuration of the NIC.
IPConfig / Renew
Local connection: IP address................................................: 2555.255.0Default. 10.1.11.11.4 ipconfig / release: Release the configuration of the NIC. ipconfig / release:
Sign, IP address.................................: 0.0.0Default.......: 0.0.0Default ........................................................
2.1PING 127.0.0.1 Verify that the TCP / IP protocol is installed;
Open the command prompt, type "ping 127.0.0.1" command
If the words appear below, the native TCP / IP protocol is installed:
Pinging 127.0.0.1 with 32 bytes of data: reply from 127.0.0.1: Bytes = 32 TIME <10ms TTL = 128 reply from 127.0.0.1: bytes = 32 TIME <10MS TTL = 128 reply from 127.0.0.1: bytes = 32 TIME <10ms TTL = 128 reply from 127.0.0.1: Bytes = 32 TIME <10ms TTL = 128 ping statistics for 127.0.0.1: Packets: Sent = 4, Received = 4, Lost = 0 (0% Loss), Approximate Round Trip Times In Milli-Seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms Otherwise, if the words are shown below, the local TCP / IP protocol is not complete, please re-add TCP / IP protocol:
Pinging 127.0.0.1 with 32 bytes of data: Request timed out. Request timed out. Request timed out. Ping statistics for 127.0.0.1: Packets: Sent = 4, Received = 0, LOST = 4 (100% Loss Approximate Round Trip Times in Milli-Seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms
2.2 ping Your native IP: Verify that your native IP address is complete or not, if the network card physical properties are intact; for example, ping my native IP (10.1.15.120 - Example, the practice is your host corresponding to your host), such as The words shown below have shown that the native IP address has been configured and the network card physical properties are intact: pinging 10.1.15.120 with 32 bytes of data: reply from 10.15.120: bytes = 32 TIME <10MS TTL = 128 reply from 10.1 .15.120: bytes = 32 TIME <10MS TTL = 128 reply from 10.1.15.120: bytes = 32 TIME <10MS TTL = 128 reply from 10.1.15.120: bytes = 32 TIME <10MS TTL = 128 ping statistics for 10.1.15.120: Packets : Sent = 4, Received = 4, Lost = 0 (0% Loss), Approximate Round Trip Times in Milli-Seconds: minimum = 0ms, Maximum = 0ms, Average = 0ms
Otherwise, if "Request Timed Out." Is displayed, the native IP address is not configured or the network card physical properties are not good. Please configure the IP address. If there is a problem, please replace your network card or reinstall your The NIC driver tried.
2.3 Ping Your Gateway IP: Verify that the physical line from you to the gateway is connected; for example, ping your gateway (10.1.15.1 - Examples, practice is your host corresponding to the gateway), if "reply from .. ... "The word is said that the unit is in good condition to its gateway physical line; otherwise, if" Request Timed Out. "Is displayed, the unit is indicating that the unit of the gateway is faulty, please contact Net management is resolved.
3. Tracert Command: Track the path of the packet to the host, can detect the network failure is in the school or out of school.
For example, tracking to 263 online site: Click the "Start" menu of the operating system, click "Run", type the "Tracert www.263.net" command in the "Open" command, you can get the following words Results ("->" table explanation):
Tracert www.263.nettracing Route to www.263.net [211.100.24.131] -> Paulid 263 online site host IP address; OVER A MAXIMUM OF 30 HOPS: 1 1 ms 2 ms 2 ms 10.1.11.2-> to This step indicates that the line connectivity in the campus network is intact, and the line fault can only occur outside the school; 2 2 ms 2 ms 2 ms 10.4.2.43 * * * Request timed out. -> Description From 10.4.2.4 to the previous one A fault has occurred between the stage routers, causing a 263 online site.
