Many friends often encounter situations where the computer cannot access the Internet when using computers for work, and they feel very distressed about this. PHP editor Strawberry will provide you with detailed troubleshooting and solutions for this problem. Welcome everyone to continue reading this article so that when you encounter such problems, you can easily solve them and say goodbye to troubles.
The corporate computer LAN is normal but cannot access the WAN. The reasons may be as follows:
1. Corporate leaders prohibit some employees from accessing the Internet, enable IP address filtering or MAC address filtering on the company router, and ban some IP addresses and MAC address to access the Internet through the router. You can only ask your company leaders for instructions on this issue;
2. There is a problem with the Internet backbone. Now the entire company cannot access the Internet. In this case, you can only call the ISP operator's repair number.
1. There is a problem with the wireless network itself. If it is not connected properly, it will lead to the inability to access the Internet.
Solution: Connect to other valid wireless networks.
2. The router is unable to access the Internet due to overheating or damage.
Solution: Replace with a new router.
3. The wireless network includes Chinese, and some tablets cannot connect.
Solution: Change the wireless network name.
4. The tablet computer has a small available memory and cannot access the Internet.
Solution: Free up tablet memory.
Hello friends, there are three reasons why the computer cannot connect to WIFI:
The first reason: local connection error, there is a more practical solution: XP system: just find the Internet Neighborhood on the desktop, right-click Properties, and then Find the wireless network connection, right-click, there is a disable at the top, you click disable, then after five seconds, click enable again, usually this will solve the problem, then restart the computer, your computer will be able to access the Internet, WIN7 system: Start----Control Panel----Hardware and Sound----Devices and Printers: (If you are a win7 user, you can directly enter: "Modem" at Start----Search for programs or files) Then See the name of your computer username in the "Device" option of "Devices and Printers", double-click to open it, and then select "Hardware" in the "General" and "Hardware" options, and the "Device Features" of this machine will appear. Find the "Network Adapter" option in the type of the following menu and click Properties, and then you will see that the current device status is disabled. At this time, you only need to click "Change Settings" to enable the network adapter again and you can use it.
The second reason: the network card driver is lost. For example, when you uninstall some software, you also uninstall the shared files, causing the network card driver to be lost. You can right-click on My Computer, Properties-Hardware-Settings In the configuration manager, check to see if there is a network adapter. If not, the network card is missing. I suggest you just reinstall the factory network card driver, or install it with the driver, and it will be OK
The third case: it is a modem or a router The phenomenon of data packet blocking occurs, causing the network to be connected sometimes, sometimes blocked, or not connected at all. In this case, when the power is on, press the restart button of the modem or router. The old-fashioned method: (Use a toothpick to There is a reset button on the modem or router (there is a small hole where the network cable is connected, aim at the hole and hold it for 10 seconds). Now the new modem and router have a restart button. (In this way, after restarting, the modem and router The data will be restored to factory values) Then pull out all the network cables and phone lines, cut off the power, then plug them back in, and restart the computer. At this time, the router needs to reset the parameters, which is to enter the router through the address bar and enter Inside, find the Internet settings or interface settings. According to the setup wizard, select the PPPOE method. Then you enter your Internet account and Internet password. If it is a wireless router, you also need to set the wireless parameters and password. Finally, click Save. This is usually done. , you can access the Internet normally.
I hope my answer will be helpful to you, and I wish you success and happiness~~
If you are sure that there is no problem with the network hardware and the network card is correctly recognized
You can go to Network->Advanced Settings, Speed, the default is auto-negotiation, you can try to force downgrade,
For example, first force to 10M full dual If it works, then it is a network cable problem [most likely]. It will be solved by replacing the Category 6 cable. 5. What’s wrong with the computer not being able to access the Internet?
6. The computer cannot access the Internet hosts?
The main function of hosts is to speed up domain name resolution and can also block websites. Sometimes when computer hosts are abnormally faulty, the software or other functions are not running properly. The specific solutions are as follows;
2. Double-click to open "Local Disk C";
3. Open the "windows" folder;
4. Open the "system32" folder;
5. Open the "drivers" folder;
6. Open " etc" folder;
7. Find the hosts file, right-click and select "Open";
8. Select "Notepad" as the opening method;
9. Clear the contents and click to save.
Click --, right-click, click-, double-click, select "Obtain an IP address automatically", and click.
The computer's network card failure may be due to the following reasons:
1. The network card driver is not installed correctly or is damaged, and the driver needs to be reinstalled or updated.
2. The network connection settings are incorrect. You need to check whether the network configuration and IP address settings are correct.
3. There is a network connection failure. There may be a problem with the network cable or router. You need to check whether the network device is normal.
4. The network card hardware is faulty. There may be a problem with the network card itself and the network card needs to be replaced or repaired. To sum up, you can troubleshoot and solve the problem of the computer not being able to access the Internet by checking the driver, network settings, network equipment and network card hardware.
If there is a broadband failure, you can first troubleshoot through the following methods:
〖1〗Use a stand-alone dial-up. If you are using a router, please temporarily disconnect the router for testing;
〖2〗Restart the modem and computer;
〖3〗Re-create the broadband dial-up connection and try dialing again. Operation method: Start>Programs>Accessories>Communication>New Connection Wizard.
If the problem is still not restored after troubleshooting by yourself, you can log in to the mobile business hall - customer service - broadband problem report to provide feedback, and we will get in touch with you as soon as possible.
Windows key + R
Enter cmd.
Type netsh winsock reset in the command prompt box - press Enter.
After the reset is completed, you will receive the message "Winsock reset completed successfully".
Reset
Similarly, to reset TCP/IP, use the command netsh int tcp reset in cmd
ps: Performing winsock reset Windows 10 can be done by Windows key + R or Windows key + x Select (admin) command Enter cmd at the prompt to open the command prompt.
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