It is inevitably confusing when a computer cannot access the Internet after being connected to the network through a switch. PHP editor Zimo will provide an in-depth discussion on this issue to help you diagnose and solve connection failures. The following content details common causes that may cause this issue and guides you through step-by-step troubleshooting to quickly restore your network connection.
After connecting to the switch, the computer in the Internet cafe cannot access the Internet. The reasons for this may include: unstable physical connection, improper computer settings, etc. Please follow the following steps to eliminate:
1. Replace the network cable between the computer and the switch. Make sure the corresponding indicator light on the switch is on and the local connection is stable. Checking method: Connect two computers to the switch and set them on the same network segment. If they can ping each other, the connection between the computer and the switch is stable.
2. Set the computer’s local connection to automatically obtain an IP (turn on the DHCP server on the front-end router), right-click the local connection properties, select Internet Protocol (TCP/IP), and click the Properties button.
3. Select "Obtain an IP address automatically" and then confirm.
4. After the computer obtains the IP normally, it can access the Internet normally.
5. If you still cannot access the Internet after obtaining it normally, please check the relevant settings of the front-end router to see if the computer is blocked from accessing the Internet.
6. If the IP address cannot be obtained normally, replace the network cable between the switch and the router.
First check whether other devices can connect normally. If they can connect normally, it may be because the WiFi has turned on the connection settings, which restricts the connection access of the current device. Just log in to the router settings page to lift the restriction.
If the mobile phone can connect to the wireless network, but the laptop cannot connect, it proves that there is no problem with your home WiFi. The problem lies in your computer. It may be a problem with your wireless network card or the wireless switch is not turned on, or it may be that the wireless service is not available Enable.
You can set it up one by one according to the following steps:
1. First, right-click My Computer - Management - Device Manager - Network Adapter on the desktop to check whether the wireless network card is disabled. If it is disabled, enable it
2. Then In the same computer management interface, find Services and Applications - Services. Start the Wireless ZeroConfiguration service in the Wireless physical switch. The general key combination is: Fn+F8. Different notebooks are different. Find the button with the wireless logo and press Fn at the same time to turn it on:
Then search for the wireless network signal connection again, and it should be fine.
4. Why can’t I connect to the Internet on Apple 12?
5. How to set up the computer if it cannot connect to the Internet? Tutorial on setting up the computer to connect to the Internet?
1. First, turn on the computer, press and hold the "windowskey＋R" key combination on the keyboard, and call up the command in the run window. Enter "CMD" in the run window and click "OK" as shown in the image below.
2. Then, enter the command interface, enter ipcongfig-all on the command line, and then press the Enter key, as shown in the figure below.
3. Next, drop down to find the IP address of DNS and DHCP and remember these two addresses, as shown in the picture below.
4. Then, go to the beginning of the desktop, find "Windows System", expand it, click "Control Panel", and find "Network and Internet" in the control panel interface, as shown in the figure below.
5. Next, after entering the network and Internet interface, find "Network and Sharing Center" in the right menu and click it, as shown in the picture below.
6. Then, after entering the Network and Sharing Center, there is a "View Active Networks" area on the right, and the network being connected is displayed below this area, as shown in the figure below.
7. Next, after finding the network you want to connect to, double-click it to open the menu, and then select "Properties" from the menu, as shown in the picture below.
8. Then, after entering the properties interface, find "Internet Protocol Version 4" and click "Internet Protocol Version 4" to open it and enter the IP address setting interface, as shown in the figure below.
9. Then, select "Use "DNS server address below", copy and paste the address you just found to solve the problem that the computer's broadband connection is normal but there is no network, as shown in the picture below.
6. What's wrong if the computer can't connect to the Internet?
2. What should I do if my laptop cannot connect to the wireless network? First let’s check if this is a wireless router issue. In order to confirm whether there is a problem with the wireless router, we can remove it and use the wired Internet connection directly. If you can access the Internet normally at this time, it indicates that there is a problem with the wireless router. If you can't access the Internet properly, it's not a router problem.
1. Operator problem (disconnection). Many times, if the computer does not have a network, it may not be a computer problem, but a problem with the network itself. Therefore, you should first check whether network equipment such as routers are operating normally. If the computer cannot access the Internet, check other devices connected to the same network, such as other computers and mobile phones, to see if they can access the Internet.
2. Hardware problem. Hardware problems are mainly problems with some network equipment. Common equipment include: routers, optical modems, network cards, wireless network cards, switches, network cables, network cable crystal heads, etc. The following are some basic judgments:
3. Driver problem. As long as there are no problems with the hardware and network itself, if the computer does not access the Internet, it is most likely a network card driver problem.
4. Network setting problems
Network setting problems usually occur in newly purchased computers or newly installed broadband. Because the router settings are incorrect or the computer network settings are incorrect, the computer cannot access the Internet.
When you find that your computer host cannot connect to the Internet, you may feel very confused and frustrated. After all, the Internet plays an extremely important role in modern life, especially in work, study and entertainment. Therefore, it is crucial to correctly diagnose and resolve this problem.
First, let’s take a look at some common reasons that may cause your computer host to be unable to connect to the network. First, there may be issues with your network connection, which may be due to problems with your wireless network settings, your router, or the service provider that provides your internet connection. Secondly, the network adapter on the computer itself may be faulty, or the driver needs to be updated. In addition, firewall settings, network settings, or malware may also cause this problem.
There are different solutions to try for different possible causes. First, checking your network connection is an important step. Make sure your router is turned on and working properly, and that your computer is receiving a good network signal. Secondly, check whether your network adapter is working properly. You can try to reinstall the adapter driver or update the driver version. Also, adjust your firewall settings as needed to ensure your network connectivity is unimpeded.
In addition, to ensure that your computer is not infected by malware, it is recommended to perform a comprehensive security scan. Improve the security of your computer by detecting and removing possible malware through security software. If all of the above methods fail, consider contacting your network service provider for further support and guidance.
In life, the inability of the computer host to connect to the network may bring us a lot of inconvenience, but the key to solving the problem lies in patience and methods. By carefully diagnosing the source of the problem and taking appropriate resolutions, we can hopefully restore normal network connectivity quickly. I hope the solutions provided above will be helpful to you. I hope you can get rid of the problem of being unable to access the Internet as soon as possible and restore an efficient network experience!
This is a good question. First of all, hotspots are also wireless signals, and wifi is also a wireless signal. Assuming that the network lines are normal, even if the laptop cannot connect, the mobile phone can still connect to the wifi.
Then there are two possibilities.
1, channel. 2. Frequency band.
The basic problem with the channel is not big. Generally, if the signal is weak, the connection will definitely fail. You can set the channel of the router to improve the connection smoothness. This probability is relatively low.
Most of what I encountered was a frequency band problem.
Because currently there are two common standards for WiFi for international civilian use, namely 2.4 and 5g frequency bands. The 5g frequency band mentioned here is not the 5g communication of mobile phones, it is two different things.
Core knowledge: Old notebooks do not support the 5g band, while new routers generally support both the 2.4 and 5g bands. The 5g band may be enabled by default, so old notebooks cannot connect to wifi. Old notebooks from 15 years ago basically cannot. It supports the 5g frequency band of the router. You can change it to a 2.4g router, or go into the router settings and change it to 2.4.
Thank you. Purely by hand.
The router is restarted or replaced, or the community is undergoing network maintenance, or the laptop, or the wireless network card is broken, it may all be possible
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