Unauthorized access to Ethernet connection

Ethernet without network access

In modern society, the Internet has become an indispensable part of people's lives. Whether it is work, study or entertainment, we cannot do without the support of the Internet. However, when we use Ethernet to connect to the network, we sometimes encounter the "No network access" problem. This problem has brought a lot of inconvenience to our work and life. This article will discuss the reasons why Ethernet has no network access and how to fix it.

First, let us understand the concept of Ethernet and network access rights. Ethernet is a computer network technology that uses Ethernet cables to connect computers, routers, and other network devices to achieve communication and data transmission between devices. Network access rights refer to whether a user can connect to the network and access network resources.

So, why does the Ethernet have no network access rights?

One possible reason is an IP address conflict. Every device connected to an Ethernet network requires a unique IP address, which is used to identify the device's identity and location. If multiple devices use the same IP address on the same network, an IP address conflict will occur, causing the Ethernet to fail to connect to the network correctly.

Another possible reason is a network setting issue. Before connecting to the Ethernet, we need to correctly set the network parameters, including IP address, subnet mask, default gateway, DNS server, etc. If the setting is wrong, the Ethernet will not be able to connect to the network and the correct network access will not be obtained.

In addition, hardware failure may also result in no network access to the Ethernet. For example, a damaged network cable, a faulty network card, or a problem with the router may prevent the Ethernet from connecting to the network properly.

In response to the above problems, we can take some solutions to solve the problem of no network access rights on Ethernet.

First, we can check whether the IP address conflicts. You can view the IP address of the device by opening a command prompt and entering the "ipconfig" command. If you find that multiple devices use the same IP address, you can manually set a unique IP address to ensure that each device uses a different address.

Secondly, we can check whether the network settings are correct. In the Control Panel, find the "Network and Internet" option, enter the "Network and Sharing Center" and click "Change Adapter Settings". In the pop-up window, find the connected Ethernet adapter, right-click and select "Properties", then select "Internet Protocol Version 4 (TCP/IPv4)", and click "Properties". In the pop-up dialog box, select "Obtain an IP address automatically" and "Obtain DNS server address automatically" and make sure the settings are correct.

In addition, we can also try to restart the router and computer to solve possible hardware failure issues. You can power off the router and computer, wait a moment, reconnect power, and then try connecting to the Ethernet network again.

If none of the above methods solve the problem, we can try to reset the network settings. In the Control Panel, find the "Network and Internet" option, enter the "Network and Sharing Center" and click "Change Adapter Settings". In the pop-up window, find the connected Ethernet adapter, right-click and select "Properties", then select "Internet Protocol Version 4 (TCP/IPv4)", and click "Properties". In the pop-up dialog box, select "Use the following IP address" and "Use the following DNS server address", and then set the IP address and DNS server address to be obtained automatically. Then click "OK" to save the changes.

In summary, the lack of network access rights on Ethernet may be caused by IP address conflicts, network setting problems, or hardware failures. We can solve this problem by checking the IP address, adjusting network settings, restarting the device, and resetting network settings. I hope that the solutions provided in this article can help people who encounter the problem of Ethernet no network access, so that we can enjoy the convenience of the network.

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